1) Olympic figure skating, USA Network and NBC. The rhythm dance competition (shown here with the U.S. duo of Zachary Donnely and Madison Hubbell) will be packed into two busy days. The first round is live today, in USA’s morning (6-9:40 a.m.), then will be repeated on tape during NBC’s prime time (8-11 p.m.). The final round starts live at 8:15 p.m. Sunday on USA; NBC will take over at about 10:45 p.m., after the Super Bowl trophy is handed out.
2) More Olympics. In prime time, NBC has live coverage of the men’s Alpine skiing giant slalom, with the qualifying round in prime time and the finals latenight (11:30 p.m. to 2 a.m.). Also live is the women’s monobob, in prime. On tape is the women’s skeleton in prime, plus speedskating and skiing latenight. There’s more all day on USA and 2:30-6 p.m. on NBC. Also, CNBC is live with hockey (Russian-Czech, 8 a.m.; Latvia-Slovakia, 11 p.m.) and curling (U.S.-Canada, 8 p.m.).
3) ”Attenborough’s Global Adventure,” 8 p.m., BBC America. It’s been a long adventure. David Attenborough reached the BBC 70 years ago; two years later, he hosted “Zoo Quest.” A decade ago, people thought he’d retired; instead, he began new, high-tech nature films. At 95, he has a three-Saturday look at recent years. This opener (preceded by great “Blue Planet” reruns) is maritime, with gorgeous glimpses, from the Great Barrier Reef to Galapagos.
4) “Magnum P.I.,” 8 p.m., CBS. “Magnum” has temporarily lost its Fridays to “Celebrity Big Brother,” but we can catch a rerun here. Higgins and Magnum go undercover at a ritzy golf club, where a caddy is accused of stealing. That’s followed at 9 by a “Blue Bloods” rerun from last spring, with word getting out that Joe Hill, a young cop, is the police commissioner’s grandson.
5) Movies, all day, TBS. Films can be great fun when someone leaps to a new place or time. This marathon starts at 10 a.m. with the delightful “Back to the Future” (1985); its sequels (1989 and ’90) are at 12:30 and 3 p.m. At 5:30 p.m., “Captain Marvel” (2019) is set in 1995, with a space pilot crashing into earth. It’s breezy fun … followed by the sometimes-fierce “Avengers: Infinity War” (2018) at 7:57.