Off the Wall is always a good sport.
SERIOUS SPORTS Take a fresh look at the biology and physics of competition in "ESPN Sport Science" (Saturday at 11 a.m., Sunday at 9:15 p.m., Disney XD). Then watch new documentaries in the acclaimed series "ESPN 30 for 30, Vol. II" (Tuesday at 8 p.m., ESPN). First among the six new flicks: "Broke," exploring why so many athletes with multimillion-dollar incomes end up that way. Preview at espn.com/ 30for30.
If you haven't seen the spy/action series "XIII" (Saturday 11 a.m.-11 p.m., repeats Sunday 10 a.m.-10 p.m., Reelz), you can watch all 12 episodes this weekend (twice). There's also a four-episode catch-up of "Doctor Who" (Saturday 4-8 p.m., BBC America), leading into the new special "Doctor Who in the U.S." (8 p.m.) and current season's fifth episode (9 p.m.). All about "XIII" at reelz.com/xiii.
'CHEERS' ON CLOO? Yeah, I don't get the connection, either. Just enjoy this 30th-anniversary marathon of "Cheers" (Sunday 6 a.m.-Monday 6 a.m., Cloo), the game-changing NBC sitcom that ebuted back in September 1982. Episode titles at cloo.com/schedule.
LUCHA LIBRE! Mexican wrestling, explained! "Tales of Masked Men" (Sunday at 7 p.m., PBS/13) opens season 3 of the docuseries "Voces" with vintage grapplers like El Santo and Solar, "little" wrestlers, and historians/fans celebrating the beloved masked athletes. Video at voces.tv.
WAS JESUS MARRIED? Asking that question is the new documentary hour "The Gospel of Jesus's Wife" (Sunday at 8 p.m., Smithsonian). Hot on the heels of headlines, it explores a fourth-century codex that refers to such a woman, apparently part of a widespread belief in Christianity's earliest decades. More at smithsonianchannel.com.
CHANNEL RE-BRANDING Hallmark Channel, now calling itself "The Heart of TV," launches two new weekday series Monday -- the lifestyle magazine "Home & Family" (10 a.m.-noon), with Paige Davis and Mark Steines, and the Osmond-sister talkfest "Marie" (noon). New to the listings is NickMom, nightly taking over the 10 p.m.-2 a.m. block on Nick Jr. New shows at launch include the standup comedy of "NickMom Night Out" (10 p.m.), the docucomedy "MFF: Mom Friends Forever" (10:30 p.m.), the studio/interview/hidden camera mix of "Parental Discretion With Stefanie Wilder-Taylor" (11 p.m.), and "What Was Carol Brady Thinking?" (11:30 p.m.), adding thought balloons over Florence Henderson's vintage sitcom "The Brady Bunch." NickMom shows repeat midnight-2 a.m. See nickmom.com.
UNSCRIPTED PREMIERES Ex-anchor for CNN T.J. Holmes hosts the new late-nighter "Don't Sleep!" (Monday-Thursday at 11 p.m., BET). Wild-animal owners face care challenges in "Animal Intervention" (Tuesday at 9 p.m., NatGeo Wild). And onetime guests like Mary Jo Buttafuoco are updated in "Oprah: Where Are They Now?" (Tuesday at 10 p.m., OWN).
IT'S GLOBAL JAMES BOND DAY! Friday marks the 50th anniversary of the UK release of "Dr. No" with Sean Connery as secret agent 007. Celebrations include Cloo's all-day marathon (Friday 6 a.m.- Saturday 6 a.m.) of Bond adventures, including Connery's classic first three; screenings continue throughout next weekend into more recent portrayals by Pierce Brosnan and Daniel Craig. Find movie titles and times at cloo.com/schedule . . . . Viewers with access to Epix HD also can enjoy the new documentary "Everything or Nothing: The Untold Story of 007." If you don't see Epix on your TV, try watching online, or via Roku or Xbox. Get a free trial at epixhd.com/freetrial.