Weekend TV : Unfettered Comedians and Politicians

HBO offers the retrospective “20 Years of Comedy on HBO” tonight at 10:30, featuring some of TV’s earliest uncensored comedy routines by a cavalcade of comedians who took advantage of the freedom to utter whatever they wanted.

Among the performers are Robert Klein, Robin Williams, George Carlin, Brett Butler, Jim Carrey and Damon Wayans.

Several public affairs shows will focus on politics, including billionaire Ross Perot’s conference at the Dallas Convention Center and the GOP presidential candidates.