Why they don't do TV appearances - I think it's propably a mix of they're happy with the level of 'success' / attention they have and get and they don't really like the whole TV-business. I had a brief brush with that business last summer, I was in a few rounds of a casting for a TV-show, and while it was kinda funny and interesting I was pretty amazed about how completely fake everyone and everything was (well, 90% of it all anyway). Also it was quite obvious they had me there to 'use' me, and, at least to me, that didn't really feel too nice. (Oh and there's lyrics like 'deadeye', 'with their smiles never touching their eyes...', stuff like that)