Advertisements I just had an issue with my relatively new (2 weeks old) Tivo HD. Specs: Verizon FiOS, 2 Motorola 'S' cable cards, HDMI cable, Samsung DLP Problem: Watched a fair amount of TV today on Tivo (working nights this week) without any issue. Just sat down to watch a few more minutes before I went back to work. Screen blank (sort of gray) and cannot change the channel. Any attempt to channel up/down got me a 'bong' from Tivo. I could see the guide and all Tivo settings without a problem. Could not change channels in Guide either. In the end, I rebooted the Tivo and everything works again. Any ideas? Should I be worried?