.WTV is the new DVR-MR format for recorded TV-shows in the Vista Media Center with TV Pack 2008 installed. Since there is a bug in that TV Pack, not allowing to see the current playback posision within the MSAS COM State integration service, the only way to 'fix' the commercial skipping addin, is to convert the .WTV file into a .DVR-MR, and/or cutting out the commercial at that stage.
Does anyone know of a free command-line utility that can be used for that?