WEYI-TV (channel 25) is a television station licensed to Saginaw, Michigan, United States, serving the Great Lakes Bay Region of Central Michigan as an affiliate of NBC. Owned by Howard Stirk Holdings, WEYI-TV is operated by Sinclair Broadcast Group via a shared services agreement (SSA) alongside Flint–licensed Fox affiliate WSMH (channel 66), owned by Sinclair, and Bay City–licensed CW affiliate WBSF (channel 46), owned by Cunningham Broadcasting and operated by Sinclair under a separate SSA. The three stations share studios on West Pierson Road in Mount Morris Township (with a Flint mailing address); WEYI-TV's transmitter is located in Vienna Township along the Genesee–Saginaw county line. WEYI-TV is the oldest station in the Flint–Saginaw area. It began broadcasting on May 4, 1953, as WKNX-TV on channel 57. Owned by the Lake Huron Broadcasting Corporation and affiliated with CBS, the small local station did not provide primary service to the Flint area for its first two decades of operation. The station moved to the lower channel 25 in 1965. It was purchased in 1972 by the broadcasting division of the Rust Craft Greeting Card Company; Rust Craft changed the call letters to WEYI-TV and built a new studio and high-power transmitter facility near Clio, significantly im... ()