I have discovered that after I have been playing around in the TiVo YouTube Service on my Premiere, then returning to main TiVo, playing any recording no longer functions correctly.
When you launch to view any recording, the screen just sits there blank (black color). If I bring up the progress bar I find that the file is actually running, but at an accelerated rate, and nothing on the screen but blackness.
The only way to clear the problem is to restart the TiVo unit.
After I have restarted, I bring up the recording I had tried to play, I find that it now plays fine but from the point it left off in the accelerated play it was experiencing before the restart.