1) “Snowpiercer” season-finale, 9 and 10 p.m., TNT, rerunning at 11 and midnight. Wilford is in charge again, living in luxury and planning a carnival (really). Layton (Daveed Diggs, shown here in a previous episode) – formerly a revolutionary hero – is at the bottom, working with sewage. Still, he schemes to rescue Melanie, who left the train to gather vital information at a research station. These two hours are harsh, brutal and, as usual, beautifully crafted.
2) “Bulletproof” trilogy finale, 8 p.m., CW. It seemed like a splendid idea, for two British cops to vacation in South Africa, one bringing his wife and daughter. Then a local girl was kidnapped and they tried to help; they’ve been in chases, in gunfights and (briefly) in prison. They don’t realize that a local cop is in on the scheme. As last week ended, he walked into the hut where the girl was held; a gunshot followed. Now the finale includes surprises and a car chase; it’s entertaining, despite the thick accents.
3) Basketball, 7 and 9:30 p.m.ET, CBS. The winners here get spots in the final four of the NCAA tournament; the other two spots will be decided Tuesday. The four survivors collide Saturday, with the championship game next Monday.
4) “American Idol” (ABC) or “The Voice” (NBC), both 8-10 p.m. Duets loom large in both shows: “Voice” has dueling duets – linking with a teammate, yet trying to seem more impressive; “Idol” has duets with celebrities, just before judges choose the top 24.
5) “Brokenwood Mysteries,” any time, www.acorn.tv. On each of the next six Monday, “Brokenwood” has a movie-length tale, set in a small New Zealand town. This one starts brightly – an “Antiques Roadshow” sort of show arrives – and ends well, but would be better at half the length. For something more taut, Acorn has the third of its four “Bloodlands” hours. But for both of those (and “Bulletproof”), be wary: Not all English-speaking shows offer the “Downton” diction that Americans can follow.