I have an old Series 2 (AT&TiVo) that is now connected to a DTA. I set up the DTA over 6 months ago, and everything has been working fine. But today, after maybe a week of not watching this TV, I turn it on and find that all of the video looks scrambled. This is on every channel. The TiVo menus look fine, only the channel video is scrambled. I assumed a problem with the DTA and power-cycled it. However, that didn't fix it, so I hit Standby on the TiVo, which enables RF passthrough so I can see the DTA output directly on the TV. Low and behold, the video looks just fine. All of the channels look good. But when I go back to the TiVo, all the video is still scrambled. I restarted the TiVo, which didn't help at all. Then I re-ran Guided setup to repeat the cable box setup. That didn't help either, as all through Guided setup the video was scrambled still. How can the TiVo be scrambling what appears to be a perfectly good video signal? Could it be a hardware failure? I wasn't able to find any similar reports on the forum. Thanks for any help.