Comment 8 for bug 325874

I think it is a bug in xorg or the driver of the videocard wich only affects kdetv and xawtv, because you checked the versions, and tvtime works. But tv-time seems to use another deinterlacer / xvideo or something like that, because the cpu-usage is much higher when i activate tvtime then when i activated kdetv.

So I think its a communication problem with the xvideo / v4l and the nvidia-driver, because kdetv uses these ones. For tvtime I can't say. I'm not an expert.