Over the past week I have been experiencing a new issue and can't seem to figure out how to prevent it. It happens when in the HDUI, when navigating the UI by using the left or right arrow, every few times you enter or exit a folder the entire screen goes black, and my TV displays "No Signal" It's as if the HDMI cable was unplugged or the TiVo was powered off. Here is what I have found. Turning the TV off, then back on does not resolve the signal. Letting it sit at the no signal screen will not make the video come back, it will sit at no signal for ever. Restarting the TiVo will restore the signal. Changing off my TiVo on the HDMI Switch, then Back to my TiVo also restores the signal. The TiVo is not frozen, nor does it act like anything had ever happened when the signal is restored. Last night while navigating a wish list folder with 8 recorded programs in it, while setting them all to KUID I had this issue happen 3 times. It started a little over a week ago It only appears to happen when hitting the left or right arrow to navigate the HDUI. It will not happen any other way. And no issues like this happen with my Apple TV or Blu-Ray Player.