same here, diff tv card
mine is the leadtek tv2000 xp. im quite sure its the nvidia linux drivers. i tried the XFree86 'nv'driver, and xawtv worked perfectly using the -noxv option.
i tried playing around with bttv and xawtv options, and rearranging the slot arrangement. still nothing worked under Nvidia's 2960 driver.
maybe someone can write to them about this problem, someone who knows their tech support email address (if they have one, cause i sure have yet to find it).
BTW, i have the redhat 7.2 basic distro (no kernel, or any other package upgrades). thinkin of switchin to an ATI Radeon card for my next card.