You trying to play in Windows Media Player? If so could just be a bad codec. Might want to install the k-lite pack and see if that helps.
That is TS downloads on Tivo Desktop.I have Use the fastest method available option checked in tivo desktop options. If I uncheck that,usually I only get audio if I try to play the file.
So PS is if unchecked? Like I said if I do that, I get audio without video and the tivo file is maybe 1/10 the size of the TS version.That is TS downloads on Tivo Desktop.