Advertisements I've been seeing the same thing. It's not every YouTube video, but a fair number of them. Rewinding back to the beginning will play the "blacked out" part. Also I used to be able to sometimes get wide screen videos to play at 720p, now they all play at 480i (or randomly p) in anamorphic wide screen format. Interestingly if you set your TV in wide format and then set the TiVo to "panel" aspect while in Live TV, it carries over to YouTube and wide screen videos will show wide screen and normal videos will show normal. Kind of a neat trick if you use 1080i or 720p fixed output mode.