[mythtv-users] Garbage at top of recording.

[Phill Edwards]

> Sounds like the VBI data.  Generally, it doesn't show up because of
> overscan.  If you're not overscanning, you can crop it at playback.

See http://mythtv.org/docs/mythtv-HOWTO-10.html#ss10.4 for details on
the crop filter.