* Are You Smarter Than a 5th Grader? (8/7c Fox)'''
It has been 12 years since Lois & Clark: The New Adventures of Superman was canceled, so we'll see just how rusty Dean Cain's superpowers (mental division) have become. Before donning that red Superman cape, celebrity contestant Cain did go to Princeton (his degree is in history), but that doesn't necessarily mean he's as smart as a fifth grader.
* AquaPalooza on Lake Martin (8/7c CMT)
A good time is sure to be had by country-music fans and lovers of Alan Jackson in particular with this unique lakeside concert performed by the superstar on Alabama's Lake Martin on July 25. More than 35,000 fans on more than 4000 boats, floats and inner tubes watched as Jackson sang many of his signature songs, including "Summertime Blues," "Livin' on Love" and, of course, "Good Time."
* Kevin Nealon: Now Hear Me Out (9:30/8:30c Showtime)
Actor-comedian Kevin Nealon, a former Saturday Night Live cast member (1986-95) and current star of the cable pot-com Weeds, flies solo as the star of his first-ever Showtime stand-up special. Among the topics his audience listens to are things that he enjoys talking about: colonoscopies; pet phrases; people who ask and answer their own questions; aging; avoiding confrontations; and first-time fatherhood. The show was taped in Hollywood.
* Michael Loftus: You've Changed (10/9c Comedy Central)
Have you given any thought to what a wedding ring really represents? Or have you ever stubbed your pinky toe and wondered what that useless digit is for anyway? Well, even if you haven't, Michael Loftus has these answers and more as the comic and former writer for The George Lopez Show gets big laughs in this one-hour stand-up special.
Cody is all the rage among the girls when he successfully fills in for an injured cooking teacher. Unfortunately, his star-chef status causes him to ignore the one girl he most wants to impress: Bailey. And speaking of impressions, London makes quite a splash when she claims Zack's artwork as her own and sells it for far more than it's worth.