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    <link:label id="lab_us-gaap_SalesRevenueServicesNet_BA031ECF2C70F0B96A167EB77047C21B_label_en-US" xlink:label="lab_us-gaap_SalesRevenueServicesNet_BA031ECF2C70F0B96A167EB77047C21B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Sales Revenue, Services, Net</link:label>
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    <link:label id="lab_us-gaap_SalesRevenueNet_C30AF46CC7FF3632F4F87EB7704757AC_label_en-US" xlink:label="lab_us-gaap_SalesRevenueNet_C30AF46CC7FF3632F4F87EB7704757AC" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Revenue, Net</link:label>
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    <link:label id="lab_us-gaap_CostOfGoodsSold_804FBE79661EFC40393E7EB7704741DB_label_en-US" xlink:label="lab_us-gaap_CostOfGoodsSold_804FBE79661EFC40393E7EB7704741DB" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Cost of Goods Sold</link:label>
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    <link:label id="lab_us-gaap_CostOfServices_DD1818113BC40CB95D097EB770473060_label_en-US" xlink:label="lab_us-gaap_CostOfServices_DD1818113BC40CB95D097EB770473060" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Cost of Services</link:label>
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    <link:label id="lab_us-gaap_CostOfGoodsAndServicesSold_47383663D64E19F118DB7EB77047F2FD_label_en-US" xlink:label="lab_us-gaap_CostOfGoodsAndServicesSold_47383663D64E19F118DB7EB77047F2FD" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Cost of Goods and Services Sold</link:label>
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    <link:label id="lab_us-gaap_GrossProfit_B7C7167C5821486E84E57EB77047D6AC_label_en-US" xlink:label="lab_us-gaap_GrossProfit_B7C7167C5821486E84E57EB77047D6AC" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Gross Profit</link:label>
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    <link:label id="lab_us-gaap_SellingGeneralAndAdministrativeExpense_8F644B04C6909DB412B27EB77047FC46_label_en-US" xlink:label="lab_us-gaap_SellingGeneralAndAdministrativeExpense_8F644B04C6909DB412B27EB77047FC46" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Selling, General and Administrative Expense</link:label>
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    <link:label id="lab_us-gaap_DisposalGroupIncludingDiscontinuedOperationPropertyPlantAndEquipmentNet_99EF24126531642B04B016771FA7C0A5_terseLabel_en-US" xlink:label="lab_us-gaap_DisposalGroupIncludingDiscontinuedOperationPropertyPlantAndEquipmentNet_99EF24126531642B04B016771FA7C0A5" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Property and equipment, net</link:label>
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    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationGoodwill" xlink:label="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationGoodwill_90E51A8862B49991744F16771FA796E3" xlink:type="locator" />
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    <link:label id="lab_hlit_SellingGeneralAndAdministrativeExpenseMember_B658413C5F8AB834008D16771FC53E7F_documentation_en-US" xlink:label="lab_hlit_SellingGeneralAndAdministrativeExpenseMember_B658413C5F8AB834008D16771FC53E7F" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Selling, general and administrative expense.</link:label>
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    <link:label id="lab_us-gaap_ShareBasedCompensation_2D284D7EF82D92FFA70716771FC55FFD_verboseLabel_en-US" xlink:label="lab_us-gaap_ShareBasedCompensation_2D284D7EF82D92FFA70716771FC55FFD" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Total stock-based compensation</link:label>
    <link:label id="lab_us-gaap_ShareBasedCompensation_2D284D7EF82D92FFA70716771FC55FFD_label_en-US" xlink:label="lab_us-gaap_ShareBasedCompensation_2D284D7EF82D92FFA70716771FC55FFD" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Share-based Compensation</link:label>
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    <link:label id="lab_hlit_ShareBasedCompensationInOperatingExpense_1EE8FAA964263D1491FF16771FC5C68D_documentation_en-US" xlink:label="lab_hlit_ShareBasedCompensationInOperatingExpense_1EE8FAA964263D1491FF16771FC5C68D" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees that are allocated to operating expenses.</link:label>
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    <link:label id="lab_us-gaap_AllocatedShareBasedCompensationExpense_B8F100A41979BAD9F07816771FC5DBF0_terseLabel_en-US" xlink:label="lab_us-gaap_AllocatedShareBasedCompensationExpense_B8F100A41979BAD9F07816771FC5DBF0" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Total stock-based compensation</link:label>
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    <link:label id="lab_us-gaap_ProductWarrantyAccrual_E7114FCB098AFCCADF2A167720646EA4_periodStartLabel_en-US" xlink:label="lab_us-gaap_ProductWarrantyAccrual_E7114FCB098AFCCADF2A167720646EA4" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:type="resource" xml:lang="en-US">Balance at beginning of period</link:label>
    <link:label id="lab_us-gaap_ProductWarrantyAccrual_E7114FCB098AFCCADF2A167720646EA4_label_en-US" xlink:label="lab_us-gaap_ProductWarrantyAccrual_E7114FCB098AFCCADF2A167720646EA4" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Product Warranty Accrual</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ProductWarrantyAccrual" xlink:label="loc_us-gaap_ProductWarrantyAccrual_E7114FCB098AFCCADF2A167720646EA4" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ProductWarrantyAccrual_E7114FCB098AFCCADF2A167720646EA4" xlink:to="lab_us-gaap_ProductWarrantyAccrual_E7114FCB098AFCCADF2A167720646EA4" xlink:type="arc" />
    <link:label id="lab_hlit_ProductWarrantyAccrualRelatedToSaleOfDiscontinuedOperations_97453A13FA099D9ED7651677206407B7_negatedLabel_en-US" xlink:label="lab_hlit_ProductWarrantyAccrualRelatedToSaleOfDiscontinuedOperations_97453A13FA099D9ED7651677206407B7" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Transfer to Aurora as part of the sale of discontinued operations</link:label>
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    <link:label id="lab_hlit_ProductWarrantyAccrualRelatedToSaleOfDiscontinuedOperations_97453A13FA099D9ED7651677206407B7_documentation_en-US" xlink:label="lab_hlit_ProductWarrantyAccrualRelatedToSaleOfDiscontinuedOperations_97453A13FA099D9ED7651677206407B7" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Product Warranty Accrual Related To Sale Of Discontinued Operations</link:label>
    <link:loc xlink:href="hlit-20140627.xsd#hlit_ProductWarrantyAccrualRelatedToSaleOfDiscontinuedOperations" xlink:label="loc_hlit_ProductWarrantyAccrualRelatedToSaleOfDiscontinuedOperations_97453A13FA099D9ED7651677206407B7" xlink:type="locator" />
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    <link:label id="lab_us-gaap_ProductWarrantyAccrualWarrantiesIssued_BBEE1804FEE29B5332BB167720642CD4_terseLabel_en-US" xlink:label="lab_us-gaap_ProductWarrantyAccrualWarrantiesIssued_BBEE1804FEE29B5332BB167720642CD4" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Accrual for current period warranties</link:label>
    <link:label id="lab_us-gaap_ProductWarrantyAccrualWarrantiesIssued_BBEE1804FEE29B5332BB167720642CD4_label_en-US" xlink:label="lab_us-gaap_ProductWarrantyAccrualWarrantiesIssued_BBEE1804FEE29B5332BB167720642CD4" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Product Warranty Accrual, Warranties Issued</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ProductWarrantyAccrualWarrantiesIssued" xlink:label="loc_us-gaap_ProductWarrantyAccrualWarrantiesIssued_BBEE1804FEE29B5332BB167720642CD4" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ProductWarrantyAccrualWarrantiesIssued_BBEE1804FEE29B5332BB167720642CD4" xlink:to="lab_us-gaap_ProductWarrantyAccrualWarrantiesIssued_BBEE1804FEE29B5332BB167720642CD4" xlink:type="arc" />
    <link:label id="lab_us-gaap_StandardProductWarrantyAccrualPayments_1202BB8FCF46A0BD19D516772064DE5D_negatedLabel_en-US" xlink:label="lab_us-gaap_StandardProductWarrantyAccrualPayments_1202BB8FCF46A0BD19D516772064DE5D" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Warranty costs incurred</link:label>
    <link:label id="lab_us-gaap_StandardProductWarrantyAccrualPayments_1202BB8FCF46A0BD19D516772064DE5D_label_en-US" xlink:label="lab_us-gaap_StandardProductWarrantyAccrualPayments_1202BB8FCF46A0BD19D516772064DE5D" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Standard Product Warranty Accrual, Payments</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_StandardProductWarrantyAccrualPayments" xlink:label="loc_us-gaap_StandardProductWarrantyAccrualPayments_1202BB8FCF46A0BD19D516772064DE5D" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_StandardProductWarrantyAccrualPayments_1202BB8FCF46A0BD19D516772064DE5D" xlink:to="lab_us-gaap_StandardProductWarrantyAccrualPayments_1202BB8FCF46A0BD19D516772064DE5D" xlink:type="arc" />
    <link:label id="lab_us-gaap_ProductWarrantyAccrual_5EA416A138044C41DFCD16772064B22D_periodEndLabel_en-US" xlink:label="lab_us-gaap_ProductWarrantyAccrual_5EA416A138044C41DFCD16772064B22D" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:type="resource" xml:lang="en-US">Balance at end of period</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ProductWarrantyAccrual" xlink:label="loc_us-gaap_ProductWarrantyAccrual_5EA416A138044C41DFCD16772064B22D" xlink:type="locator" />
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    <link:label id="lab_hlit_AvailableForSaleSecuritiesInMaterialUnrealizedLossPosition_BFBD528B4FD131B709AE1677201E289A_terseLabel_en-US" xlink:label="lab_hlit_AvailableForSaleSecuritiesInMaterialUnrealizedLossPosition_BFBD528B4FD131B709AE1677201E289A" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Available-for-sale securities in a material unrealized loss position</link:label>
    <link:label id="lab_hlit_AvailableForSaleSecuritiesInMaterialUnrealizedLossPosition_BFBD528B4FD131B709AE1677201E289A_label_en-US" xlink:label="lab_hlit_AvailableForSaleSecuritiesInMaterialUnrealizedLossPosition_BFBD528B4FD131B709AE1677201E289A" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Available For Sale Securities In Material Unrealized Loss Position</link:label>
    <link:label id="lab_hlit_AvailableForSaleSecuritiesInMaterialUnrealizedLossPosition_BFBD528B4FD131B709AE1677201E289A_documentation_en-US" xlink:label="lab_hlit_AvailableForSaleSecuritiesInMaterialUnrealizedLossPosition_BFBD528B4FD131B709AE1677201E289A" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Available For Sale Securities In A Material Unrealized Loss Position</link:label>
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    <link:label id="lab_hlit_ShareBasedCompensationArrangementByShareBasedPaymentAwardOtherThanOptionsVestedAndExpectedToVestOutstandingNumber_BF69320E5C40A7B770C31677200AE4B5_terseLabel_en-US" xlink:label="lab_hlit_ShareBasedCompensationArrangementByShareBasedPaymentAwardOtherThanOptionsVestedAndExpectedToVestOutstandingNumber_BF69320E5C40A7B770C31677200AE4B5" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Number of Shares Underlying Restricted Stock Units</link:label>
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    <link:loc xlink:href="hlit-20140627.xsd#hlit_ShareBasedCompensationArrangementByShareBasedPaymentAwardOtherThanOptionsVestedAndExpectedToVestOutstandingNumber" xlink:label="loc_hlit_ShareBasedCompensationArrangementByShareBasedPaymentAwardOtherThanOptionsVestedAndExpectedToVestOutstandingNumber_BF69320E5C40A7B770C31677200AE4B5" xlink:type="locator" />
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    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsOutstandingWeightedAverageRemainingContractualTerms_345665BFE719E2D562DE1677200A2B92_terseLabel_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsOutstandingWeightedAverageRemainingContractualTerms_345665BFE719E2D562DE1677200A2B92" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Weighted Average Remaining Vesting Period (Years)</link:label>
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