Advertisements I have a new TIVOHD and have a single S-CC installed. As others have seen, I am missing some channels that TW Cable has put onto switching, so those are not available for the time being. The problem I'm having is periodic loss of channels. For example, I get ESPNHD and ESPN2HD (not switched). But, sometimes I tune to those channels and they are black screens. However, if I go into TIVO and test these channels, they come up with video and I can get out of TIVO and watch those channels OK until some later time when I again need to test the channel to get video. This has also happened with other channels and the test channel workaround seems to work for them too. Any thoughts or ideas. Thanks in advance for any advice.