ffmpeg -f dshow -aspect 4:3 -s 768x576  -r 25 -pix_fmt yuyv422 \
  -i video="Hauppauge WinTV 88x Video Capture":audio="Eingang (High Definition Audio-" \
  -vcodec mpeg2video -r 25 -vf "yadif,crop=760:570:8:1,scale=640:480" -sws_flags lanczos \
  -pix_fmt yuv420p -aspect 4:3 -qmin 1 -qmax 3 -intra \
  -acodec mp2 -ab 192k -y filename.mpg