1) Winter Olympics, 8 p.m. to 12:30 a.m. ET, NBC. For viewers who prefer events with American contenders, here are two big finals, both live. There’s the women’s snowboarding halfpipe, with Chloe Kim (shown here), who won in 2018 at 17. And there’s men’s figure-skating: Nathan Chen is a three-time world champion, but finished fifth in the 2018 games. The winner that time, Japan’s Yuzuru Hanyu, is trying to be the first guy in 94 years to win the event three straight times.
2) More Olympics. In prime time (8 to 12:30), NBC also has taped coverage of short-track speedskating and men’s alpine skiing – which concludes with live coverage from 1:05 to 2 a.m. There’s more taped coverage of events, from 2-5 p.m. ET on NBC and all day on USA.
3) “Resident Alien,” 9 p.m., Syfy. This is already a terrific show, leaping nimbly between droll wit and loopy science-fiction. Now it adds another comedy master: Alex Borstein has three Emmys from “The Marvelous Mrs. Maisel” and “Family Guy.” Here, she plays a lab worker who joins women’s-night at the bar. Harry – actually, the alien who killed Harry and took his body – sees a chance to steal the supplies he needs for his ship. It’s another great hour.
4) “Nature,” 8 p.m., PBS. Spanning half the globe, there are 18 different species of penguins. The Galapagos ones are the smallest (19 inches) and the most northern; the emperors in Antarctica are the biggest (over 4 feet) and most southern. Some penguins live in the comfy forests of New Zealand; others live on stony islands, eluding huge waves and giant sea lions. Here’s a fun look at all 18.
5) “NCIS,” 10 p.m., CBS. Here’s another chance to watch Mark Harmon’s final episode, with his character (Gibbs) choosing some peace and quiet. That subs for “Good Sam,” which is off to an awful start in the Nielsen ratings — dead-last among 27 CBS series this season.