WIVB-TV

WIVB-TV, virtual channel 4 (UHF digital channel 36), is a CBS-affiliated television station licensed to Buffalo, New York, United States. The station is owned by Nexstar Media Group, as part of a duopoly with CW affiliate WNLO (channel 23). The two stations share studios on Elmwood Avenue in North Buffalo and transmitter facilities in Colden, New York. However, master control and some internal operations are based in Springfield, Massachusetts-licensed Nexstar sister station and NBC affiliate WWLP's studios in Chicopee. The station was first signed on the air on May 14, 1948.