I tried watching Danny and the Dingo on Hulu, but the show is so damn awful. Danny Kass is obviously a legit rider but not interesting in the least. The Dingo is a full-blown retard who I guess we're supposed to like because he is an Australian stoner? Dude is not funny and he tries too hard for the camera.
In terms of shows about snowboarding, I honestly don't think you're going to find anything half-way decent anyway.