Do You Remember WNDS Channel 50?
Remember WNDS "The Winds of New England" out of Derry?
The station signed on in 1983 as an independent station and kept the WNDS call letters right up through 2005, at which time it became My TV. Eventually it ended up as NH1; you can check out a more detailed history on wikipedia.
In the meantime, check out this wonderfully warbled retro sign on circa 1990!