Odpovím si sám
Pomohl návod z:
http://www.ubuntuforums.org/showthread.php?t=107932&highlight=hercules+smart+tvKonkrétně tento post:
To set the card up:
in a terminal, put this: sudo gedit /etc/modprobe.d/bttv
if a blank file opens, paste this:
#i2c
alias char-major-89 i2c-devb
options i2c-algo-bit bit_test=1
# bttv
alias char-major-81 videodev
alias char-major-81-0 bttv
# Hercules smart tv
options bttv card=100 tuner=5 radio=0 pll=1
I don't know if pll=1 is ok. It works for my avert tv. If it doesnt work for you, try with pll=0 or delete and try. Also, I don't know if your card has radio. If it has I believe radio=1, but I'm not sure.
If the file bttv exists, just look if card=100 and tuner=5 are set ok.
I use zapping for watching tv. Try it. If you only see a black screen, the try switching to capture mode. Overlay doesn't work for me.
Oh, and don't forget to unload and reload bttv after every try. I think:
sudo modprobe -r bttv to unload
sudo modprobe bttv to load.