If you’re not watching Flight of the Conchords every Sunday night on HBO, stop what you’re doing and immediately punch yourself in the balls, as a friend of the WOW Report might say. You’re missing wonderfully eccentric half hours about a couple of Kiwi musicians relocated to Manhattan that implode the sitcom formula, each episode pregnant with humor so dry it’s dehydrated and two brilliant, organic-to-the-plot musical numbers that look like they cost a lot more than they probably did. Ask anyone. Here, for example, is a dream sequence.