Hans,
ivtv-0.3.7h and 0.3.7i both has problem with white "noise" lines in the picture...
Changing "ivtvctl -x 1" to "-x 0" removes the noise...
Also the crackling sound (since the sound level fix) is still there (this has already been reported).
Tested with mplayer with a PVR500/PAL-BG.
/Corax