Off the Wall never tires of eye-pokes and head-bonks.
MOE, LARRY & CURLY And Shemp. And you know who they are. If you've seen the new big-screen film, now compare the original knockabout trio in their short subjects from golden-age Hollywood -- now on three channels! Check out the schedule for those beloved black-and-white Three Stooges (Saturday 9:30 a.m.-noon, IFC; Saturday morning 3-4 a.m., Antenna TV; weekdays 4:45-6 p.m., IFC; random weekdays around 5:30 and/or 9 a.m., AMC). Current movie info at threestooges.com.
PLANET DAY There's no better way to celebrate Earth Day than "Planet Earth" (6 a.m. Saturday-9 p.m. Sunday, BBC America), the gorgeously epic docu-miniseries narrated by nature expert David Attenborough. (Yes! No American substitute here!) This original British version runs in marathon form, its 11 episodes also restarting Saturday at 5:55 p.m. and Sunday at 9:05 a.m., that last one leading into "The Making of Planet Earth" (Sunday 9-11 p.m., BBC America), with "Downton Abbey" star Dan Stevens. Watch in HD! Need more Attenborough? He'll host the Discovery finale of the new "Frozen Planet" (Sunday at 8 p.m., Discovery). Since Attenborough is actually on-screen for this "On Thin Ice" hour, it's tough to swap him out for Alec Baldwin. Get planetary at bbcamerica.com/planet-earth.
FOX TURNS 25! Once there were three broadcast networks. Later, there were six! (Then, five.) But we're concerned here with No. 4. It's celebrated in the "Fox 25th Anniversary Special" (Sunday 8-10 p.m., Fox/5), loaded with clips and cast reunions of Fox faves like "That '70s Show," "In Living Color" and "Married . . . With Children." Tune in early for bonus shows: the 1987 premiere episode of that signature Fox sitcom "Married . . . With Children" (Sunday at 7 p.m.) and this year's 500th episode of "The Simpsons" (Sunday at 7:30 p.m., both on Fox/5). Test your Fox knowledge at fox.com/25th-anniversary/trivia.
SPACE IS THE PLACE Maybe you saw the space shuttle Discovery flown atop a 747 this week to its new Washington retirement home. Now there's "Space Shuttle: The Final Countdown" (Sunday 8-10 p.m., Smithsonian), revisiting NASA's entire 30-year shuttle era. Video at smithsonian channel.com.
DANCE DRAMA How honest are they really going to be? As honest as TMZ? (Did you read about Urkel?) We'll see whether there's a whitewash when "20/20: Dance Floor Confidential" (Monday at 10 p.m., ABC/7) goes behind the scenes of the same network's "Dancing With the Stars." Keep up at tmz.com/category/dancing-with-the-stars.
UNSCRIPTED PREMIERES You'll be seeing reviews of big network arrivals. We're here with heads-ups about the rest, all those cable time fillers popping up like seasonal dandelions. New household offerings include "Million Dollar Rooms" (Tuesday at 8:30 p.m., HGTV) and "White Room Challenge" (Tuesday at 9 p.m., HGTV). Romance demands equal time with "Love Addiction" (Wednesday at 8 p.m., TV One) and "7 Days of Sex" (Thursday at 10 p.m., Lifetime). Famous and influential women have "The Conversation With Amanda de Cadenet" (Thursday at 11 p.m., Lifetime), as the British interviewer's opener welcomes Jane Fonda, Gwyneth Paltrow, Zoe Saldana and Sarah Silverman. Then, an all-day marathon of "Whale Wars" (Friday 10 a.m.-8 p.m., Animal Planet) leads into the new "Whale Wars: Viking Shores" (Friday 8-10 p.m., Animal Planet).