New on the tube

"JKX: The Jamie Kennedy Experiment" Airs: 7 p.m. Sunday, WB (Channel 62) Stars: Jamie Kennedy Formula: Two parts "Candid Camera," one part "Tracey Takes On" and a dollop of Tom Green-style humor Aaron says: Try it (maybe). Think of "JKX" as a sketch comedy show in which the cast includes a few unsuspecting players. Using hidden cameras and a disguise, Kennedy concocts situations that are (depending on your point of view) outrageously daring or just plain sick, while ordinary folks look on in horror. In the show's funniest bit, a young woman invites her mom and sister to meet her boyfriend. It's Kennedy, posing as a clueless white-suburban rapper, who nearly brings the mom to full meltdown. Unfortunately, the two other bits I saw suggested where this show is probably headed. In one, an audience at an infomercial taping gasps after a presenter suffers what appears to be serious injury. This "gag" is drawn out over several minutes, during which time Kennedy squanders most of the show's comedic promise. To reach Aaron Barnhart, phone (816) 234-4790 or visit the TV Barn Web site at www.tvbarn.com. @ART CAPTION:Kennedy @ART:Photo