(Presuming this goes to the submitter; if not, someone please fix)
What is your sound card driver, is it a snd-intel8x0 by any chance?
Do you have an audio cable connecting the TV card output to the sound card input?
(Presuming this goes to the submitter; if not, someone please fix)
What is your sound card driver, is it a snd-intel8x0 by any chance?
Do you have an audio cable connecting the TV card output to the sound card input?