1) “Born Wild: The Next Generation,” 8 p.m., ABC. If you missed this Earth Day special Wednesday on cable, catch a quick rerun. Robin Roberts hosts, cutting to scenes worldwide. Chris Hemsworth (yes, Thor) shows us rescued koala cubs in Australia. National Geographic and ABC reporters look for other newborns, including monkeys in Sri Lanka (shown here), whales in Hawaii, lions in Kenya, seals in Canada and black bears in Minnesota.
2) “Saturday Night Live,” 11:29 p.m., NBC. The good news is that there will be another live-from-home edition; the bad is that NBC didn’t bother to tell people about it. The first such edition was a fairly funny and drew big ratings. After pausing for a week, “SNL” is back with a second one … but didn’t announce it until late in the week.
3) “The ABC’s of COVID-19,” 9-10:30 a.m. ET, CNN. The “Sesame Street” stars – Big Bird, Elmo, Rosita, Grover and Abby Cadabby – link with Sanjay Gupta, Erica Hill and others, in a special aimed at kids and parents. The “Sesame” gang has been busy during the shutdown. It simulcast an Elmo “playdate” on many networks and has its regular episodes on PBS Kids (10 a.m. weekends, 10 a.m. and 2 and 10 p.m. weekdays), plus PBS stations and HBO.
4) “Let’s Go Crazy” (8-10 p.m., CBS) and “Amertican Idol” (9-11 p.m., ABC). Here are reruns of music shows taped before the shutdown. CBS has its big-deal Prince tribute; ABC has the season’s first “Idol” auditions … rerunning on the eve of the show’s switch to social-distance mode, with contestants singing into iPhones at home.
5) “Line of Duty,” 10 p.m., AMC. With production suspended, networks will be scrambling for new episodes. Some were already harvesting foreign shows; “Line of Duty” tops BBC’s ratings. Gates (the excellent Lennie James) was a good cop until he took money from Jackie, who was soon killed. As Arnott probes corruption, Kate feigns friendship with Gates. It’s a powerful story, which wraps up next week. For a much lighter cop show, the Canadian “Frankie Drake Mysteries” is 7 p.m. ET on Ovation.