1) “Saturday Night Live,” 11:29 p.m., NBC. After a five-week rest, the show begins its Biden era. John Krasinski hosts, Machine Gun Kelly is the music guest and the presidential focus shifts. In the most-recent new episode (Dec. 19), Alex Moffat – who had often played Eric Trump (as he does here, left) – became Joe Biden. Previously, that role went to Jason Sudeikis and then, for six election-time episodes, Jim Carrey.
2) “Wild Year on Earth,” 8 p.m., BBC America. This is what many of us need during a winter lockdown – a reminder that a splendid spring could be coming. The second part of a gorgeous, six-week series focuses on March and April. Scenes range from messy (sharks mating) to sweet (turtles hatching) to perilous, as those baby turtles try to make it to the sea.
3) ”Wendy Williams: The Movie,” 8 p.m., Lifetime. At 56, Williams is a successful TV talk-show host. Before that, she had a hectic life on radio, ranging from the Virgin Islands to Washington, D.C. … while keeping listeners familiar with the problems in her life and the lives of people she interviewed. This is followed by a documentary – “The Wendy Williams Story – What a Mess!” – at 10:03 p.m., with both rerunning at 12:01 and 2:04 a.m. Also, the Salt-N-Pepa movie reruns at 6 p.m.
4) Basketball, 8:30 p.m. ET, ABC, with pre-game at 8. Now that the football season is (almost) over, ABC brings the NBA back to prime time. Tonight, the Celtics host LeBron James and the Lakers.
5) “The Music Man” (1962), 8 p.m. ET, Turner Classic Movies. In a vibrant musical, a slick salesman tries to convince people that there’s trouble in River City. Other good movies include the animated “How to Train Your Dragon” (2010) at 8 p.m. on TNT and “Apollo 13” (1995) all over the schedule. Showtime has it at 6:30 p.m., the Paramount Network at 11 a.m. and just after midnight, at 12:05 a.m.