On October 31, 1948, WNBK went on the air as WNBK, transmitting on VHF channel 4. It was the second Cleveland television station to launch, ten months after WEWS-TV (channel 5), and the fourth of NBC's five original owned-and-operated stations to come on, three weeks after WNBQ (now WMAQ-TV) in Chicago. WNBK radio (1100 AM) was a sister station of WTAM radio (1100 AM), which had been owned by NBC since 1930. Despite the lack of a coaxial cable link to New York City, AT&T had just established a cable connection between WNBK, WNBQ, WSPD-TV (now WTVG) in Toledo, KSTP-TV in St. Paul, Minnesota, and KSD-TV (now KSDK) in St. Louis, therefore establishing NBC's Midwest Network. Along with WNBQ, WNBK was a pioneer in programming for the regional network. On November 2, two days after coming on, WNBK broadcast the Truman/Dewey election results to the NBC Midwest Network. On January 11, 1949, WNBK began broadcasting live NBC programs from New York through a cable hookup to Philadelphia.