WWLP began broadcasting on March 17, 1953 one month before rival WGGB-TV (then known as WHYN-TV). The station aired an analog signal on UHF channel 61 and was an NBC affiliate from the start. At its sign-on, WWLP had the distinction of being one of the first UHF television stations in the United States after the Federal Communications Commission (FCC) opened the UHF band as well as Massachusetts' oldest station outside of Boston. It was founded by William L. Putnam and his company, Springfield Television. WWLP's original studios were at the transmitter site on Provin Mountain in Feeding Hills.