I'm actually with Sarge on this one; it would be cool to see Meat full of conviction and coolness in the promo spots, and if the situation isn't right for a live performance, why not run a HCTB TV spot at the end/halfway through/whatever - some great rockin' clips over the album artwork (like the end of Wario's vid) - in the same way you'd cut to a trailer or scene from a movie if you were interviewing an actor?
My 2 cents.
Doode.
P.S. Or... if you want to go the comedy route, get Jack Black to do several promo spots on TV shows with Meat. At least that way people who aren't familiar with the humour and just see Meat as a musician will get it!