Sock it to you! Here comes Rowan...

Sock it to you! Here comes Rowan & Martin’s Laugh-In 25th Anniversary (Sunday at 9 p.m. on NBC), a two-hour tribute to the irreverent, 1968-73 NBC comedy-variety series that featured such regulars as Goldie Hawn, Lily Tomlin, Arte Johnson, Ruth Buzzi, Teresa Graves, Jo Anne Worley, Alan Sues, Gary Owens, Judy Carne and Flip Wilson.

TBS sets sail this week with special two-hour cruises of The Love Boat (Monday-Friday at 7:05 a.m.). Monday: Tanya Tucker and Mel Tillis guest on “Country Music Jamboree”; Tuesday finds John James, Marie Osmond and Meredith Baxter on an “Italian Holiday”; Wednesday: Cesar Romero, Lorenzo Lamas and Melissa Sue Anderson visit Spain and Portugal; Thursday: Heather Thomas, Tony Danza and John Ritter cruise to Japan; and Friday: Colleen Dewhurst, Trevor Howard and Loretta Swit visit London and Paris.

But that’s not all folks! Lifetime also gets in the “Love Boat” act, presenting Love Boat: A Valentine’s Voyage (Saturday at 8 p.m.).

Lifetime celebrates Valentine’s Day with 16 episodes of the ABC sitcom Anything but Love (Saturday beginning at noon), which stars Jamie Lee Curtis and Richard Lewis.

Nick at Nite presents Dates From Heck (Saturday from 10 p.m. to early next Sunday at 1 a.m. on Nickelodeon), which finds such popular TV Land characters as Lucy, Mary Richards, Sally Rogers and Dobie Gillis reliving their nightmarish experiences with the opposite sex.