John Francini (a.k.a. Pedantic Geek) noted: >50- WNDS-TV (NH); they recently changed calls when they got sold Although there was a lapse in ownership of the license, the first Channel 50 was WXPO-TV licensed to Manchester NH. With Transmitters and Main (ahem) Studio in Windham, NH and Auxiliary (cough) Studios in Lowell, MA.