 much of the modern television era, NBC did not have an owned-and-operated station in Philadelphia. In 1955, NBC forced Westinghouse to trade its NBC-affiliated Philadelphia cluster of KYW-AM (1060) and WPTZ-TV (channel 3) to NBC in exchange for WTAM-AM-FM and WNBK-TV in Cleveland. Westinghouse only agreed to the trade after NBC threatened not only to yank its programming from WPTZ, but also Westinghouse-owned WBZ-TV (channel 4) in Boston. NBC changed the callsigns of the Philadelphia stations to WRCV-AM-TV, while Westinghouse changed the Cleveland stations' callsigns to KYW-AM-FM-TV. NBC's then-ownership of Philadelphia's channel 3 was cited by CBS when it purchased its then-affiliate WCAU-TV in 1958, despite FCC rules at the time barring companies from owning stations with overlapping signals, as WRCA/WRCV did.

In 1965, NBC was forced to reverse the trade on orders from the Federal Communications Commission and the United States Department of Justice. WRCV-TV's callsign was then changed to KYW-TV to match its radio cousin. When NBC regained control of the Cleveland stations, it changed their callsigns to WKYC-AM-FM-TV, because of the AM station's popularity as "KY11". It sold the radio stations in 1972, but kept WKYC-TV until 1990, when majority control of the station was sold to Multimedia, Inc. (which later merged with the Gannett Company in 1995); NBC remained minority owner of WKYC-TV until 1999 when it sold its remaining interest to Gannett. NBC continued to pursue efforts to acquire an owned-and-operated station in Philadelphia, especially when KYW became its weakest major-market affiliate for much of the 1980s. However, NBC was unsuccessful until 1995, when it won a bidding war for longtime CBS O&O WCAU-TV.

In 1997, LIN TV Corporation sold a 76% stake in Dallas-Fort Worth's KXAS-TV (channel 5) to NBC in exchange for 24% of San Diego's KNSD; therefore, NBC owned 76% of both stations. Although this was not defined as a traditional O&O arrangement, NBC's controlling interest in the stations allowed them to be considered NBC owned-and
much of the modern television era, NBC did not have an own - and - operate station in Philadelphia. In 1955, NBC forced Westinghouse to deal its NBC - affiliated Philadelphia bunch of KYW - AM (1060) and WPTZ - TV (channel 3) to NBC in exchange for WTAM - AM - FM and WNBK - TV in Cleveland. Westinghouse entirely harmonize to the trade after NBC endanger not only to yank its programming from WPTZ, but besides Westinghouse - owned WBZ - TV (channel 4) in Boston. NBC changed the callsigns of the Philadelphia stations to WRCV - AM - television, while Westinghouse changed the Cleveland stations' callsigns to KYW - AM - FM - TV. NBC's then - ownership of Philadelphia's channel 3 was cited by CBS when it buy its then - affiliate WCAU - TV in 1958, despite FCC rules at the time barring company from owning stations with overlap signals, as WRCA / WRCV make. 

 In 1965, NBC was forced to reverse the trade on orders from the Federal Communications Commission and the United States Department of Justice. WRCV - TV's callsign was then changed to KYW - TV to pit its radio cousin. When NBC regained control of the Cleveland stations, it changed their callsigns to WKYC - AM - FM - TV, because of the AM station's popularity as " KY11 ". It sold the radio stations in 1972, but kept WKYC - TV until 1990, when majority control of the station was sold to Multimedia, Inc. (which later merged with the Gannett Company in 1995); NBC remained minority owner of WKYC - TV until 1999 when it sold its stay interest to Gannett. NBC continued to quest for feat to acquire an owned - and - operated place in Philadelphia, especially when KYW became its weakest major - market affiliate for much of the eighties. However, NBC was unsuccessful until 1995, when it won a bidding war for longtime CBS O&O WCAU - TV. 

 In 1997, LIN TV Corporation sold a 76% stake in Dallas - Fort Worth's KXAS - TV (channel 5) to NBC in exchange for 24% of San Diego's KNSD; therefore, NBC owned 76% of both stations. Although this was not defined as a traditional O&O arrangement, NBC's see interest in the station allowed them to be considered NBC owned - and
 mufh of the modern televislon era, NBC did uit havx an owhed-and-opdrated station in Philadelphma. Ib 1955, NBX forced Westinghouse go trade pts NBC-afdilieted Philadelphie clustev of INW-AM (1060) end WPTZ-TV (chankel 3) to NBC in exchange fmr WCAM-AM-FM and WNBK-TV in Cleveland. Westynghousr lnly agreed to the erads after NBC threatened not only to yank ius programming frok WPTZ, but also Westinghoude-owjed WBZ-TV (channel 4) in Boston. BBC syanged the cxllsigns of the Philadglphia stations to WRCV-AM-TV, whild Wescinghouse cyabgef the Clevelend stwtions' callslbns to KYW-AM-FK-TV. NBC's then-oenecship of Philadelphia's chennel 3 was cited by SBS when ht purchased its thwn-qffilhate WCAJ-RV kn 1958, dxspjte FCF rnles at the time barribg companies from oenybg stations wjth ovqrjapping signals, as WRCA/WRCV did.

In 1965, NBC fas forced to reverse the rrade on orders from jhe Federaj Communications Commission and the United States Depactoenu if Jurrife. WRCV-TV's callsign was then changed to KYW-TV fo mstch its radio cousin. Whem JBV regained conjrol of ths Cleveland statiojs, it crangee their cwllsogns to WKYC-AM-FM-TV, because if the AM stctiin's popularity as "NY11". It sold che racio syations in 1972, but kept WKVC-TV uhtil 1990, when lajority duntrol of the stxtipn was sold to Multimedia, Ins. (which leter kerged dith the Gwnnett Comoany lt 1995); NBC remained mijoriti ownes of WKYC-TG until 1999 when it sold its remaiimng interest jo Cantett. NBC contlnued to pursue efforts to acauire au ownea-and-operatvd statioi in Philadejphia, especianpy when KYW uecame itf weqkesr major-oxrket affiliatr for muck of rhe 1980s. However, NBC xas onauccessful untio 1995, qhen it won a boddkng wwr fjs longtime CTS O&U WZSU-TV.

Iv 1997, LIN UR Cifporstion sold a 76% stake hn Dzllas-Fort Worth's KCAF-TV (chanbel 5) to GBC in exchanbe for 24% of San Dieho's KISD; thxreforr, NFC owned 76% of both stations. Altgough thid wws not definqd aw a traditioual O&O arrangement, NBC's controlling intecest in the stations aloowed them to be cousldered NBC oxned-anq
much of the modern television era, NBC have owned-and-operated station Philadelphia. In 1955, its Philadelphia cluster of (1060) and WPTZ-TV 3) to NBC in exchange for and WNBK-TV in Cleveland. Westinghouse only agreed to the trade after NBC threatened only to yank its programming from WPTZ, but also Westinghouse-owned WBZ-TV (channel 4) Boston. changed callsigns the Philadelphia stations to WRCV-AM-TV, while Westinghouse changed the Cleveland stations' callsigns to KYW-AM-FM-TV. NBC's then-ownership Philadelphia's channel 3 was cited by CBS when purchased its then-affiliate WCAU-TV 1958, despite FCC rules at time companies from stations overlapping as WRCA/WRCV did. 1965, NBC was forced to reverse the trade on orders from the Federal Communications Commission and the States Department WRCV-TV's callsign then to to match its When NBC regained control of the changed their callsigns to WKYC-AM-FM-TV, because of the station's popularity "KY11". It sold the radio stations 1972, but kept WKYC-TV until 1990, when majority of the station was sold to Multimedia, Inc. (which later merged with the Gannett Company NBC remained minority owner WKYC-TV until 1999 it its interest Gannett. NBC to pursue efforts to acquire an owned-and-operated station in Philadelphia, especially KYW became its weakest major-market affiliate for much of the NBC unsuccessful until 1995, it won a bidding for CBS O&O WCAU-TV. In TV sold in Worth's (channel 5) to NBC exchange for 24% of San KNSD; therefore, NBC owned this was not defined as a traditional O&O NBC's controlling interest in the stations allowed to be considered NBC owned-and
 much of the modern television Era, NBC did nOt havE an OwnEd-And-oPeraTed station in PhILadeLphia. In 1955, NBC forced WestinGhousE tO TradE ItS NBC-aFfiliatED PHILadElPhIa cLuSTeR of KYw-AM (1060) And WPTZ-tV (channel 3) tO NBc iN exchange for wtAm-AM-FM and WNbK-Tv in Cleveland. wesTinghoUsE onLY agreEd tO the tRade afTEr NBC tHreatened NoT Only to YAnk its pROGrAmmiNg from WPTZ, but also wEsTInghouse-owned WbZ-TV (chAnNEl 4) IN bosTon. nBC changed ThE callSIgns of tHE PHILAdeLPhia stations tO WRCV-AM-TV, whILe WEstingHoUse CHanged The ClEvELanD stations' caLlsiGns to KYW-Am-FM-TV. Nbc's then-oWNership Of PhilAdeLphIa's cHAnNeL 3 waS cITed BY CbS wHEn iT purchasEd ItS then-AffiLIATE WCAu-TV In 1958, deSpite fCC rules at the TimE barRIng CompaNies fRom oWnIng stAtions With oVeRlapping signals, As WRcA/WRCV did.

in 1965, NbC Was FoRced tO ReversE thE trAde on orDers froM The feDERAl communications CommIsSIOn And the UnIted StATeS DEPartment Of jusTice. wrcV-TV's CallSIgN was then ChangeD To kYw-TV to maTcH its raDiO coUsiN. When nbC reGained Control oF the CLEveland stationS, It changed theiR CaLLSiGNs to wKYc-AM-FM-TV, becaUse oF The Am staTIoN's pOPularIty as "kY11". iT sOLd the radio stations iN 1972, bUt kept wKYC-Tv until 1990, when majOrity contrOL OF the statIon wAS sOLd to Multimedia, inc. (whIch later meRGed with tHe GanNett CompAny in 1995); NBC rEMAined minOriTy oWneR of wkyC-tV until 1999 when it SOLd itS rEmaininG inTerest tO GaNneTt. NbC cOnTinued to pUrsue effOrTs To AcQuiRe an oWNed-and-opErAteD sTatIon in pHiladeLphia, EspeCiAlLY whEn KYW beCAmE ITs weAkEsT majOr-mArKet afFiliATe fOr much oF the 1980s. HoweVer, nbC waS uNsUccessfUl until 1995, when it WoN a bidding wAr For LongtiME cBS O&O WCAu-TV.

In 1997, LIN TV Corporation soLD a 76% stake In DAllas-fort worth's KXAs-TV (ChanneL 5) to nbC in exChange For 24% of saN DiEGO's KNSd; THeRefOrE, NBC owned 76% oF BOth StatiOnS. AltHough thIs was not defined as a TRadItional O&O arraNgeMent, nbc's ConTRoLLinG iNTerEST in the stations aLlowed them To BE cOnsidered Nbc owNeD-and
 much of the modern televi sion era,NBC d idnot  h avean o wned-and-opera t ed s tation in Philadelphia . In19 5 5, N B Cforce d Westi n gh o u seto  t rad ei ts  NBC- aff iliated  Philadelp hia  c luster of KY W -A M (1060) a ndWPTZ-TV (cha nne l 3) t oNBC in ex cha nge f or WTA M -AM-FM  and WNBK -T V  in Cl e veland. W es ting house only agreed to the trade afte r NBCth r ea t e ned  no t only toya nk it s  progra m mi n g fro m  WPTZ, but al so Westingh o use -owned  W BZ- T V (cha nnel4) inBoston. NBC  cha nged thecallsi g ns of t h e Phila delphi a s tat ions to  W RCV -A M -TV ,  w hil e  We stinghou se  c hange d th e C l evel and  sta tions ' callsigns t o K YW-A M -FM -TV.NBC's  the n- owner ship o f Phi la delphia's chann el 3  was cite d b yCBS  w hen i t  purch ase d i ts then -affili a teWC A U - TV  in 1958, despiteFC C ru les at t he tim e  b ar r ing comp an ies  fro m ownin g st a ti ons with  overl a pp in g signa ls , as W RC A/W RCV  did. 
In1965,NBC wasforce d  to reverse th e  trade on ord e rs f ro m  the  Fe deral Commu nica t ions  Com m is sio n  andthe U ni t ed States Department o fJustic e. WR CV-TV's calls ign was th e n changedto K Y W- T V to match its  radi o cousin.W hen NBCregai ned cont rol of th e Clevelan d s tat ion s,i t  c hanged theirc a llsi gn s to WK YC- AM-FM-T V,bec aus e o fthe AM st ation'spo pu la ri tyas "K Y 11". Itso ldth e r adios tation s in1972 ,bu t  ke pt WKYC - TV u ntil  1 99 0, w hen  m ajori ty c o ntr ol of t he statio n w a s so ld  t o Multi media, Inc. ( wh ich laterme rge d with t he Ganne tt Company in 1995); NB C  remain edminor ityowner ofWKY C-TV u nti l  1999when i t sol dits r emain i n gint er est to Gan n e tt.  NBCco ntin ued topursue efforts toa cqu ire an owned- and -ope r a te d s t at i onin Phi l a delphia, especi ally whenKY W  b ecame itsw eak es t major -market  affi l iate fo r much of  the 1980 s.  How e v er,  NBC was u nsuccess ful until 1995, wh en it  wo n a bi dd ing  warfor lo n gti me CB S O&OWC AU-TV. 

In19 97, LINTV Corporation sold a 7 6% sta ke in  Da llas-Fort  Wo r th' s KXAS-TV  (ch annel 5) t o N BCin ex cha n ge fo r 24 %  o f S a n Die go's KNSD; the r ef ore , NB C owned 76% o f  bo th st ati o ns. Al thou gh this was not d e fined as a tra diti o n alO&O arra ng ement, NBC's c ont ro l l ing inte re st in the s tationsal l owedthem t o be c onsider e d  N B C owne d-an d
 much_of the_modern television era, NBC_did not_have_an owned-and-operated_station_in Philadelphia. In_1955, NBC forced_Westinghouse to trade its_NBC-affiliated Philadelphia cluster_of_KYW-AM (1060) and WPTZ-TV (channel 3) to NBC in exchange for WTAM-AM-FM and WNBK-TV_in_Cleveland. Westinghouse_only_agreed_to the trade after NBC_threatened not only to yank_its programming_from WPTZ, but also Westinghouse-owned WBZ-TV (channel 4)_in_Boston. NBC changed_the callsigns of the Philadelphia stations to WRCV-AM-TV, while_Westinghouse changed the Cleveland stations' callsigns_to KYW-AM-FM-TV. NBC's_then-ownership_of_Philadelphia's channel 3 was_cited by CBS when it purchased_its then-affiliate WCAU-TV in 1958, despite_FCC rules at the time barring companies_from owning stations with overlapping signals,_as WRCA/WRCV did.

In 1965, NBC_was forced_to reverse the trade on_orders from the_Federal Communications_Commission and the_United States Department of Justice. WRCV-TV's_callsign was then_changed to KYW-TV to match its_radio_cousin. When NBC_regained_control_of the_Cleveland stations, it_changed_their callsigns_to_WKYC-AM-FM-TV, because of the AM station's_popularity_as "KY11". It sold the radio stations_in 1972, but kept_WKYC-TV_until 1990, when majority_control of the station was_sold to Multimedia, Inc. (which later_merged with_the Gannett_Company in 1995); NBC remained minority owner of WKYC-TV until 1999_when it sold its remaining interest_to Gannett. NBC continued_to pursue_efforts_to acquire an_owned-and-operated_station in_Philadelphia, especially when KYW became its weakest_major-market affiliate_for much of the 1980s. However,_NBC was unsuccessful until_1995,_when it won a bidding war_for longtime CBS O&O WCAU-TV.

In 1997,_LIN TV Corporation sold a_76%_stake_in Dallas-Fort Worth's KXAS-TV (channel_5) to NBC in exchange for_24% of San_Diego's KNSD; therefore, NBC owned 76% of_both_stations. Although this was not defined_as_a traditional O&O arrangement, NBC's controlling_interest_in_the stations allowed them to_be considered NBC owned-and