MythTV Player reads files from a mythtv backend. It is not yet fully baked but it works pretty nicely.

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DirectShow Filters for NUV files to work on windows. This allows you to play MythTV .NUV files with regular windows media software like Media Player Classic. It includes a NUV ->AVI converter. The downside is that you must access the files through the file system which means that you cannot see the title or episode description of each file.

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Tapeworm sounds interesting. I have not tried this yet but it sounds promising. It gives you a way to copy files from the mythtv backend to your computer/laptop for later viewing on the road. Very nice feature.

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I recently have been trying to configure a MythTV box for my computer (mythtv 0.20 on Ubuntu edgy). For some reason when recording, mythtv will record video but without sound. The solution is to unmute the audio for the capture device. See section 7.2 for the solution.

    $ amixer set Master,0 100%,100% unmute
    $ amixer set PCM,0 100%,100% unmute
    $ amixer set Line,0 75%,75% mute captur
    $ amixer set Capture,0 100%,100% captur
    $ su
    # alsactl store
    # exit
    $ 

Reference

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