[masraum]

the stripe almost looks like a weirdly tinted shadow from the picture on the wall. Makes me wonder if it's some sort of processing artifact from the processing of the picture frame.

I assume the pic that you posted is after having paused the show that you were watching?

I wonder if there's some setting, that you could change that would make it go away. Granted, I wouldn't expect a setting to cause that, so it's a problem if it does, but still, maybe one of those settings that most TVs seem to come with these days, upconverting or smoothing or whatever to enhance the picture of a show shot at lower res or a lower refresh rate.