“Upright Citizens Brigade” veteran Amy Poehler joins forces with her “SNL” cast mates Tina Fey, Rachel Dratch and Horatio Sanz, along with former “Conan” sidekick Andy Richter, on the one-hour improvisational comedy special “A.S.S.S.S.C.A.T: Improv” (10 p.m., Bravo).

The absurdly named hybrid troupe also includes the rest of the “Upright Citizens Brigade,” including Matt Besser, Ian Roberts and Matt Walsh. Viewers may recall “Upright” from its extended run on Comedy Central some years back. They have honed their craft of absurd situational comedy at a Manhattan storefront theater for the past 10 years.

On this special, the performers need only one word from their studio audience to get the comedy rolling. The word “squish” launches Tina Fey on a rambling monologue about a gypsy-moth infestation that may have coincided with America’s bicentennial. This, in turn, inspires an extended skit about competitive patriotism, waterbeds and a host of odd associations.

Rachel Dratch all but steals the show as a precocious child actress out to sing and dance her way into the cast of “Annie.”

Tonight’s other highlights

¢ Gender roles reversed on “Meet Mister Mom” (7 p.m., NBC).

¢ The top 10 compete on “So You Think You Can Dance” (7 p.m., Fox).

¢ A scheming teen (Kyle Massey) adopts a stray and enters a dog show in the 2005 comedy “Life is Ruff” (7 p.m., Disney).

¢ A desperate husband (Karl Malden) protects his child bride (Caroll Baker) from his business rival (Eli Wallach) in director Elia Kazan’s 1956 potboiler “Baby Doll” (7 p.m., Turner Classic Movies).

¢ The search continues on “R U the Girl” (7 p.m., UPN).

¢ Results revealed on “Rock Star: INXS” (8 p.m., CBS).

Late night

Gwyneth Paltrow appears on “Late Show with David Letterman” (10:35 p.m., CBS) … Jay Leno is host to Reese Witherspoon, Hugh Laurie and Michael Bolton on “The Tonight Show” (10:35 p.m., NBC) … Adam Brody appears on “Jimmy Kimmel Live” (11:05 p.m., ABC).