That trailer thing looks kind of crap, but I've never been a huge fan of Mythbusters. I like the premise, not so much the format and the way it's handled. My biggest gripe is either have more content instead of reiterating the same thing over and over and over and over again, or just keep each episode short (30 minutes or so would seem perfectly fine) so watching it doesn't feel like a complete waste of time. That's a complaint I have against most modern TV, though. I get why this is the case, but it's really annoying nevertheless.
/semi-coherent mini-rant