I've been trying to get analogTV working with a PVR-150, but the ffmpeg fails.

I ran the syntax myself: ffmpeg -f mpeg1video -s 352x288 -ad /dev/dsp:14 -ar 44.1 -vd /dev/video0 -ac 1 -b 2000 -ab 80 -y -re -title analogTV -author analogTV -copyright GPL -comment analogTV -aspect 4:3 -tvstd NTSC /tmp/.analogtv.avi

and it fails as ffmpeg can't find the video grab device /dev/video0

but if I change it to: ... -i /dev/video0 ...

the encoding starts ok, but I still don't see a picture.

Any ideas??