c501 error and "what to watch now"
I kept on getting a c501 error when trying to access "what to watch now" last night.
I inadvertently discovered a fix to my problem while looking for the Opera TV store: "Make a connection to the TiVo Service, and after it is complete go to TiVo Central and press THUMBS DOWN - THUMBS UP - PLAY - PLAY. (This will restart the UI).
Hope this helps someone else.