Some times when I want to see a podcast, I get the video but no sound. Occasionally I have been able to go back and play another regular program for a moment and then return to the podcast and get the sound. When I look at the Texilla podcast, the sound is extra loud or there is no sound at all. I downloaded a photography podcast yesterday and again there is no sound. I have a premiere XL TIVO, and would really appreciate some suggestions.