1) “Doctor Odyssey,” 9 p.m., ABC. Ever since the “Roseanne” days, ABC has savored its Halloween episodes. That starts at 8 p.m., with the “9-1-1” crew busy on the holiday; also, Buck’s decorations are scarier than intended. Then it’s the Halloween Week cruise (shown here) on “Odyssey”; the episode will rerun a week later, on the actual holiday.
2) “Georgie & Mandy’s First Marriage,” 8 p.m., CBS. Georgie usually manages a no-fret attitude. But that isn’t easy when your a teen dad with a troubled sister, an employment-challenged wife and a disapproving mother-in-law. The result is fairly funny, with some warmly human moments.
3) “Matlock,” 9 p.m., CBS. Matty is clever, but she hasn’t been a trial lawyer in a long time. Now she’s needed, in a wrongful-termination suit by a client who says she was sexually harassed. It’s another smart episode, preceded by a “Ghosts,” with Sam’s father visiting.
4) “Elsbeth,” 10 p.m., CBS. Elsbeth gets to mix with astronauts – or, at least, billionaires training to go in space. It’s a fairly good episode – a tad silly at times – with Rob Riggle as a suspect. Christian Borle shows up briefly as a Carter Schmidt,. A combative lawyer who did eight “Good Wife” and “Good Fight” episodes with Elsbeth.
5) “The Old Man” season-finale, 10 p.m., FX, rerunning at 11:06, 12:12, 1:18. A fierce finale starts with crises: Chase has been poisoned, Angela is being raided by Russians, Harper begs his ex-wife to intervene. We won’t spoil surprises (big ones), except to say Alia Shawkat — known for “Arrested Development” comedy — is potent and perfect as Angela.