The United Kingdom's ITV will begin airing No Heroics on September 10, 2008. It's a cheeky anti-Heroes sitcom reminiscent of Mystery Men, Freshmen, and Great Lakes Avengers... If their principal setting were a bar for second-rate metahumans, and the characters made a lot of cheap sex jokes.
...and I liked MM. I'd love to see this over here. I just read Soon I Will Be Invincible which while not this outright a comedy was a fun take on the superhero world.
I might have mentioned The Tick, which really developed this concept (with less reliance of crude jokes), and DC's foundational work with the second-rate-superhero-as-gag, Ma Hunkel in the 40s and the Inferior Five in the 60s.