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  <xsd:element id="cmcsa_GainLossOnInvestmentsAndNoncashOtherIncomeExpenseNet" name="GainLossOnInvestmentsAndNoncashOtherIncomeExpenseNet" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="cmcsa_GuaranteeObligationsCurrentPrincipalBalance" name="GuaranteeObligationsCurrentPrincipalBalance" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="cmcsa_HuluMember" name="HuluMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="cmcsa_Increasedecreaseinfilmandtelevisioncostnet" name="Increasedecreaseinfilmandtelevisioncostnet" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="cmcsa_InvestmentsInAndAmountsDueFromSubsidiariesEliminatedUponConsolidation" name="InvestmentsInAndAmountsDueFromSubsidiariesEliminatedUponConsolidation" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="cmcsa_ManagementGrantMember" name="ManagementGrantMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="cmcsa_MemberContribution" name="MemberContribution" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cmcsa_MembersCapitalMember" name="MembersCapitalMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cmcsa_MemberscontributionthatrepresentedDeferredIncomeTaxAssetsandOtherTaxrelatedItemsrecordedbyParentbutexcludedfromnetassetscontributedAxis" name="MemberscontributionthatrepresentedDeferredIncomeTaxAssetsandOtherTaxrelatedItemsrecordedbyParentbutexcludedfromnetassetscontributedAxis" nillable="true" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cmcsa_MemberscontributionthatrepresentedDeferredIncomeTaxAssetsandOtherTaxrelatedItemsrecordedbyParentbutexcludedfromnetassetscontributedDomain" name="MemberscontributionthatrepresentedDeferredIncomeTaxAssetsandOtherTaxrelatedItemsrecordedbyParentbutexcludedfromnetassetscontributedDomain" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cmcsa_MemberscontributionthatrepresentedDeferredIncomeTaxAssetsandOtherTaxrelatedItemsrecordedbyParentbutexcludedfromnetassetscontributedMember" name="MemberscontributionthatrepresentedDeferredIncomeTaxAssetsandOtherTaxrelatedItemsrecordedbyParentbutexcludedfromnetassetscontributedMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cmcsa_NBCUniversalMediaLLCMember" name="NBCUniversalMediaLLCMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cmcsa_NbcuniversalEnterpriseCommercialPaperMember" name="NbcuniversalEnterpriseCommercialPaperMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cmcsa_NbcuniversalEnterpriseCreditFacilityMember" name="NbcuniversalEnterpriseCreditFacilityMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cmcsa_NbcuniversalEnterpriseMember" name="NbcuniversalEnterpriseMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cmcsa_NbcuniversalMediaParentMember" name="NbcuniversalMediaParentMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cmcsa_NbcuniversalMember" name="NbcuniversalMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="cmcsa_NetIncomeLossAttributableToNoncontrollingInterestsAndRedeemableSubsidiaryPreferredStock" name="NetIncomeLossAttributableToNoncontrollingInterestsAndRedeemableSubsidiaryPreferredStock" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="cmcsa_NetTransactionsWithAffiliates" name="NetTransactionsWithAffiliates" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="cmcsa_NewAccountingPronouncementImpactOnIncomeStatementIfAdopted" name="NewAccountingPronouncementImpactOnIncomeStatementIfAdopted" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="cmcsa_NewAccountingPronouncementOrChangeInAccountingPrincipleEffectOnIncomeTaxExpenseAmount" name="NewAccountingPronouncementOrChangeInAccountingPrincipleEffectOnIncomeTaxExpenseAmount" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="cmcsa_NonGuaranteeObligationsCurrentPrincipalBalance" name="NonGuaranteeObligationsCurrentPrincipalBalance" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="cmcsa_NoncashInterestExpenseIncomeNet" name="NoncashInterestExpenseIncomeNet" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="cmcsa_NotePayableToParent" name="NotePayableToParent" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="cmcsa_NumberofPreferredStockSeries" name="NumberofPreferredStockSeries" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="duration" />
  <xsd:element id="cmcsa_OperatingExpensesExcludingDepreciationAndAmortization" name="OperatingExpensesExcludingDepreciationAndAmortization" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cmcsa_OtherCostMethodInvestmentsMember" name="OtherCostMethodInvestmentsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cmcsa_OtherEquityMethodInvestmentsMember" name="OtherEquityMethodInvestmentsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cmcsa_OtherFairValueMethodInvestmentsMember" name="OtherFairValueMethodInvestmentsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="cmcsa_OtherIncomeExpenseRelatedParty" name="OtherIncomeExpenseRelatedParty" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="cmcsa_OtherInvestmentIncomeLossNet" name="OtherInvestmentIncomeLossNet" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="cmcsa_OtherOperatingAndAdministrative" name="OtherOperatingAndAdministrative" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cmcsa_OtherProductsAndServicesMember" name="OtherProductsAndServicesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="cmcsa_OtherStockholdersEquity" name="OtherStockholdersEquity" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="cmcsa_Ownershipincableholdingcompanysubsidiaries" name="Ownershipincableholdingcompanysubsidiaries" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant" />
  <xsd:element id="cmcsa_PaymentsForAcquisitionsAndConstructionOfRealEstateProperties" name="PaymentsForAcquisitionsAndConstructionOfRealEstateProperties" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="cmcsa_PretaxGainOnSaleOfInvestment" name="PretaxGainOnSaleOfInvestment" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="cmcsa_ProceedsFromNoteReceivableIssuedToAndBorrowingsFromComcast" name="ProceedsFromNoteReceivableIssuedToAndBorrowingsFromComcast" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="cmcsa_ProceedsFromSalesOfBusinessesAndInvestments" name="ProceedsFromSalesOfBusinessesAndInvestments" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="cmcsa_ProgrammingAndProductionCosts" name="ProgrammingAndProductionCosts" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="cmcsa_ProgrammingRightsCurrent" name="ProgrammingRightsCurrent" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="cmcsa_ProgrammingRightsLessAmortization" name="ProgrammingRightsLessAmortization" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="cmcsa_RecentAccountingPronouncementsLineItems" name="RecentAccountingPronouncementsLineItems" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cmcsa_RecentAccountingPronouncementsTable" name="RecentAccountingPronouncementsTable" nillable="true" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cmcsa_RedeemableNoncontrollingInterestMember" name="RedeemableNoncontrollingInterestMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cmcsa_RedeemableNoncontrollingInterestsAndRedeemableSubsidiaryPreferredStockMember" name="RedeemableNoncontrollingInterestsAndRedeemableSubsidiaryPreferredStockMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="cmcsa_RelatedPartyAggregatePrincipalAmountSeniorNotesNotSubjectToGuarantee" name="RelatedPartyAggregatePrincipalAmountSeniorNotesNotSubjectToGuarantee" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="cmcsa_RelatedPartyCreditFacilityNotSubjectToGuarantee" name="RelatedPartyCreditFacilityNotSubjectToGuarantee" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="cmcsa_RelatedPartyLiquidationPreferencePreferredStockNotSubjectToGuarantee" name="RelatedPartyLiquidationPreferencePreferredStockNotSubjectToGuarantee" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="cmcsa_ResidentialHighspeedInternetProductsAndServicesMember" name="ResidentialHighspeedInternetProductsAndServicesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cmcsa_ResidentialVideoProductsAndServicesMember" name="ResidentialVideoProductsAndServicesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cmcsa_ResidentialVoiceProductsAndServicesMember" name="ResidentialVoiceProductsAndServicesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="cmcsa_ReturnsAndIncentivesAllowanceCurrent" name="ReturnsAndIncentivesAllowanceCurrent" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="cmcsa_ScheduleOfAdjustmentsToReconcileNetIncomeToNetCashProvidedByOperatingActivitiesTableTextBlock" name="ScheduleOfAdjustmentsToReconcileNetIncomeToNetCashProvidedByOperatingActivitiesTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element id="cmcsa_ScheduleOfFilmAndTelevisionCostsTableTextBlock" name="ScheduleOfFilmAndTelevisionCostsTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cmcsa_ScheduleOfIntangibleAssetsTable" name="ScheduleOfIntangibleAssetsTable" nillable="true" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cmcsa_ScheduleofFairValueMethodInvestmentsLineItems" name="ScheduleofFairValueMethodInvestmentsLineItems" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cmcsa_ScheduleofFairValueMethodInvestmentsTable" name="ScheduleofFairValueMethodInvestmentsTable" nillable="true" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cmcsa_Senior3.0NotesDue2024Member" name="Senior3.0NotesDue2024Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cmcsa_Senior3.3NotesDue2027Member" name="Senior3.3NotesDue2027Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cmcsa_Senior4.45NotesDue2047Member" name="Senior4.45NotesDue2047Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cmcsa_Senior6.5NotesDue2017Member" name="Senior6.5NotesDue2017Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cmcsa_ShareBasedCompensationNewAccountingPronouncementMember" name="ShareBasedCompensationNewAccountingPronouncementMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="cmcsa_SignificantTransactionsTextBlock" name="SignificantTransactionsTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cmcsa_SnapMember" name="SnapMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cmcsa_SupplementalFinancialInformationAbstract" name="SupplementalFinancialInformationAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cmcsa_SupplementalFinancialInformationLineItems" name="SupplementalFinancialInformationLineItems" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cmcsa_SupplementalFinancialInformationTable" name="SupplementalFinancialInformationTable" nillable="true" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cmcsa_TaxReceivableAgreementAxis" name="TaxReceivableAgreementAxis" nillable="true" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cmcsa_TaxReceivableAgreementMember" name="TaxReceivableAgreementMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cmcsa_TaxreceivableagreementDomain" name="TaxreceivableagreementDomain" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="cmcsa_TemporaryEquityFairValueOfRedeemableSubsidiaryPreferredStock" name="TemporaryEquityFairValueOfRedeemableSubsidiaryPreferredStock" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="cmcsa_TheatricalFilmCostsInProductionAndInDevelopment" name="TheatricalFilmCostsInProductionAndInDevelopment" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="cmcsa_ThemeParksMember" name="ThemeParksMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="cmcsa_TotalFilmAndTelevisionCostsAndProgrammingRightsAfterAmortization" name="TotalFilmAndTelevisionCostsAndProgrammingRightsAfterAmortization" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="cmcsa_UniversalStudiosJapanMember" name="UniversalStudiosJapanMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cmcsa_UniversalStudiosJapanTermLoansMember" name="UniversalStudiosJapanTermLoansMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cmcsa_WeatherChannelMember" name="WeatherChannelMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
</xsd:schema>