WEEKEND TV : ‘Casablanca’: It’s Playing Again, Sam

Here’s looking at comedy, “Casablanca” and four networks that play those old shows again and again.

“Casablanca” fans can get another look at Humphrey Bogart, Ingrid Bergman, Paul Henreid, Claude Rains, Sydney Greenstreet, Peter Lorre and Dooley Wilson in their 1942 Oscar-winning classic tonight at 8 on Channel 13.

Showtime’s “Paul Reiser: 3 1/2 Blocks From Home” aims for the stand-up comedy crowd tonight at 10. Returning to his childhood neighborhood, the star of “My Two Dads” and “Diner” spins his funny tales in a performance taped at New York’s Palladium Theater.

“Rodney Dangerfield’s Really Big Show” will also compete for laughs tonight at 11 on HBO. Linda Gray and Corbin Bernsen guest star.

Sunday’s comedy lineup is highlighted by “Paul Rodriguez: Behind Bars,” airing at 10 p.m. on Channels 11 and 6. In this one-hour special, the Latino comedian travels to San Quentin State Prison to interview inmates and perform his act.