1) “Baskets,” 10 p.m., FX. For four seasons, the life of Chip Baskets (Zach Galifianakis) has been a slow, downhill slide. Now comes a detour – a broadly funny trip to the state Capitol, to protest a bullet train that would buy the land his rodeo is on. Chip heads there with his twin Dale (also Galifianakis), and their mom. She’s played with subtle perfection by Louie Anderson (shown here), who’s already won an Emmy in the role. It’s a funny and warm episode; the descent resumes in next week’s series finale.
2) “Elementary” series finale, 10 p.m., CBS. It was seven years ago that we met this modern version of Sherlock Holmes (Jonny Lee Miller). A recovering drug addict, he moved to New York with Dr. Watson (Lucy Liu) and helped police solve crimes. Now here’s the 155th and final hour of this series: They wrap up the battle with tech billionaire Odin Reichenbach and get word about Jamie Moriarty, who has been Sherlock’s nemesis and (using the name Irene Adler) his lover.
3) “The Big Bang Theory,” 8 p.m., CBS. Last week had a rerun of the terrific episode in which Penny’s ex-boyfriend asked Leonard to be a sperm donor. Now Leonard is supposed to abstain until after the donation; Penny – who dislikes the whole idea – tries to seduce him.
4) “Two Sentence Horror Stories,” 9 and 9:30 p.m., CW. Each story has a two-sentence tale at the core; it’s written onscreen in the final seconds. But many also confront broader issues: Tonight’s first one – fiercely terrifying for a while – views the way abuse can be passed between generations; the second sees a Latina mom whose biggest fear is the government. Both are fairly good, despite tiny budgets.
5) “Reef Break,” 10 p.m., ABC. It’s time for the island’s first all-female surfing championship. That’s good news for Cat (Poppy Montgomery) until it turns deadly, with her former surfer rival involved..