[mythtv-users] "Watch TV" not working

[Jason Garrett]

I just finished installing the latest version of KnoppMyth.  It
appeared to recognize my Tuner Card, however, when i click "Watch TV",
the screen goes black for about 15-20 seconds and then goes back to
the main Myth TV screen.  I have a PVR-150 tuner card.  I'm currently
hooked up to my monitor, not a TV.  I have tested the cable going into
the Tuner Card by hooking it up to a tv, and I do have a good cable.