Help me out, Goon, is this a show that's only on CBC or something? If it's down in the 48, what venue is it on? I think I recall it being on the last time I was up your way (although the Scott's Tournement of Hearts was on, so that's the only think that was on TV that week), but I wouldn't have watched it anyway.
Nashville Star is similar to American Idol in that a contestant gets voted out each week until there's only one, who gets a record contract. Differences exist, in that the contestants play instruments, and also perform original material.
I missed last night's show so I will have to look for the one of the many re-broadcasts on USA.
What I like about the show is that all of the contestants are brought out each week ready to perform - they called to perform one at a time until there is one left and that person is the one who goes home and doesn't get to perform. No drawn out results show.
The low end of the FM band often has broadcast TV sound, in my experience. I've never seen this on the high end before. I was thinking VCR rabbit, but I can't remember if that uses FM or not. This thing seems like a pretty good culprit to me.