I recently purchased a new TV (actually won, but that’s aside from the point). I put the DirecTV receiver on there and it worked like a charm. Then I put the Apple TV on and it appeared to work like a charm. But when the screensaver kicked in, the colors inverted. Sometimes I’d see lines across the screen and other times the Apple TV would get weird and just be blurry. I knew immediately that I was sending it too much. Turns out the new TV couldn’t do less than 1080p and the old Apple TV couldn’t do anything higher than 720p. To confirm, I looked up the serial number.…