1) “Marshals” and “Tracker,” 8 and 9 p.m., CBS. After a week off, these ratings-leaders are back. First, Cal, the team leader, has left to see a cancer specialist. That puts Andrea in charge; she’s quickly tested when Kayce leaves the jurisdiction, helping Mo (shown here) find his nephew. Then Colter tries to find the estranged daughter of Reenie’s mentor.
2) “The Gold,” 10 p.m., PBS. In September, this same timeslot had Tom Cullen as a virtuous lawyer in “Trespasses.” Now he’s the opposite; he plays John Palmer, a schemer and swindler. His life crumbling, he’s pursued by his fellow crooks and by an intense cop (Hugh Bonneville), This hour ends with some fierce chase scenes, setting up next week’s finale.
3) “Maigret,” 9 p.m., PBS. Within a tight circle of rich men, murders point toward a tragedy years ago. It’s a strong hour, but has two flaws — the usual one (officials who just get in the way) and a final minute tonight that makes little sense. Next week, this story and the season wrap up beautifully.
4) “The Simpsons,” 8:30 p.m., Fox. Moe as a romantic-comedy star? In his dreams (literally). That follows “Animal Control,” which has the annual animal-control games with other units. It’s the 50th episode for the show (which has short seasons) … putting it 586 behind “The Simpsons.”
5) MOVIES: “Citizen Kane” — No. 1 on the American Film Institute’s all-time list — is 5:45 p.m. ET on Turner Classic Movies, leading a great movie night. There’s “Speed” at 6 and 8:30 on E; “American Sniper,” 6 p.m., Syfy; “Back to the Future,” 7, AMC; “Toy Story 2,” 7, Disney; “Terminator,” 8, BBC America; and “The Notebook,” 8:30, CMT.