I've been a TWN fan since about 1996, have been watching since probably 1995. First saw it in 1993 on a vacation to the East Coast of Canada where the hotels had cable.
So heres a list of TWN music with Local Forecast playlists dating back to Winter 1991/1992. Some are incomplete as not all music has been found yet, but as you can see, they used to play more than one song, lol.