1) “Abbott Elementary” season-finale, 9 p.m., ABC. This clever little show has been a bright spot for ABC, getting decent ratings, especially in the 18-49 age group. Now it wraps its first season, a week before “Black-ish” (9:30) ends its eighth and final year. Tonight, the Abbott school has its annual trip to the zoo (shown here), with lives in transition. Janine faces a big choice … Tariq has been offered a job in New York … and Barbara ponders her future, after learning that her favorite reptile (a tuatara) has been retired because of age.
2) “The Thing About Pam” finale, 10 p.m., NBC. For five weeks we’ve seen Pam Hupp (beautifully played by Renee Zellweger) inject herself into lives of people in small-town Missouri. A friend, Betsy, was brutally murdered; Pam somehow got $150,000 of her insurance money. Pam’s mother died under suspicious circumstances; Pam got more money. Now, in this true story, sentiment has swung against her; it’s also against the prosecutor who convicted Betsy’s husband, then lost the re-trial and asked to have the evidence destroyed.
3) “CMT Campfire Sessions,” 8 p.m., CMT. This channel has drifted far from its Country Music Television days. Often, its only nod to country music is in videos (4-9 a.m. daily) and a top-20 show (9 a.m. to noon weekends). But now comes a brief country spurt. The CMT Awards (which, oddly, ran Monday on CBS) will finally air Friday on CMT. Tonight, Little Big Town does its hits in an acoustic, campfire setting. That repeats at 9:30 p.m. Thursday, surrounded by a LeAnn Rimes special; Brooks & Dunn are at 8 p.m. Wednesday.
4) “This is Us,” 9 p.m., NBC. This could be a tough episode for fans. From the beginning, one upbeat part of the show has been the energetic Toby and his relationship with the oft-somber Kate. But as they drift apart in this final season, this hour has flashbacks viewing their relationship.
5) ALSO: “Rise of the Nazis” opens its season at 9 p.m. on PBS; most stations will follow that at 10 by rerunning a recent “Frontline” hour, “Putin’s Road to War.” Also today, the Britbox streamer has a real gem, “Why Didn’t They Ask Evans?” Hugh Laurie brilliantly adapted an Agatha Christie novel; he also directed and has a brief role in the last of the three hours.