1) “Saturday Night Live,” 11:29 p.m., NBC. After a five-week break, “SNL” is finally back with a new episode, its first in 2020. Adam Driver hosts and Halsey is the music guest. Driver has done this twice before; shown here is a previous sketch with Kate McKinnons. A hear ago, Halsey doubled as host and music guest, doing two spectacular music numbers.
2) “The Cave,” 9 p.m. ET, National Geographic, rerunning at 10:42. Here’s a late addition. Originally scheduled for March, it was moved up after getting an Academy Award nomination for best documentary feature. The film focuses on Dr. Amani Ballour; resisting a patriarchal society in Syria, she ran an underground hospital, for two years mending war victims under fierce conditions. The film, with English sub-titles, will be shown commercial-free.
3) “Flirty Dancing,” 8 and 9 p.m., Fox. After getting so-so ratings on Wednesdays, this dance/romance mash-up was exiled to Saturdays to die. Here are its final two episodes; next month, another Wednesday show (“Almost Family”) will also depart in Saturday obscurity.
4) Sports, NBC and ABC. Winter sports gobble up half the big-four networks tonight, with previews at 8 p.m. ET. NBC starts the hockey all-star game (actually, three mini-games) at 8:15. At 8:30, ABC has basketball, with the Lakers in Philadelphia
5) And more, cable. The delightful first season of “Miracle Workers” reruns from 9 p.m. to 12:30 a.m. on TBS. That sets up the hilarious second season – same writer, same actors, totally different era – on Jan. 28. Meanwhile. “Heartland Docs, DVM” focuses on immensely likable husband-and-wife veterinarians in small-town Nebraska. That debuts at 10 p.m. ET on Nat Geo Wild, rerunning at 1 a.m