Here's an odd one. Last night, on only certain channels, NBC, CBS and CW, when on them, the TiVo remote was unresponsive for about 20-30 seconds. This was on both the SD and HD channels of these networks. After the 30 seconds, I'm allowed to change channels, enter the guide, etc.
Then, randomly, those channels work fine again after a while but others exhibit the same problems. We have had the internet out this entire time and wonder if that has anything to do with this odd behavior.
EDIT: Internet is back and all these channels are working again. Thinking it's a C-133 thing.