For the past several weeks, many of the movies that are not letterboxed have annoying dashed lines at the top of the screen. I was watching My Cousin Rachel this evening on TV, and the lines were there, so I decided to stream it live on my computer using Watch TCM, and they were there, too. Same dashed lines watching Moulin Rouge the previous night, but I just checked Moulin Rouge on demand, and the lines were NOT there. My cable provider is Charter Spectrum; I don't know if it has anything to do with that. Has anyone else noticed a similar problem?