I have a 1080p capable TV that I bought around thanksgiving. It has been working fine until about 2 weeks ago.
I have a xbox hooked up to my TV through HDMI for games/netflix. Every 20 mins now the TV flickers like someone turned off the tv and then turned it back on (I see the input dialog in the right hand corner every time this happens [Like how you would see the channel # if you were watching tv])
I have been using this cable since day 1, so I don't understand. It doesn't happen if I'm watching TV (through coaxial cable), so I have to assume its something with the HDMI cable or frequency.