1) “The Masked Singer,” 8 p.m., Fox. We’re a week from the finale, with five people left, (One, viewers know, is Kylie Cantrall, shown here in Disney’s “Rise of Red” movie, as “Cat Witch.”) This edition has dumped some singers — Billy Ray Cyrus, Jack Wagner, Tone Loc — and others. Last week it unmasked actor-singer Evan Ross (Diana Ross’ son) and Greg Mathis, of “Judge Mathis” fame.
2) “Fear Factor” finale, 9:02 p.m., Fox. Making room for next week’s two-hour “Masked Singer” finale, this show ends now. Its final four face a quite-logical fear of drowning and a fear of fish that bite. Then two people race between speeding semi-trucks, trying to win the $200,000 prize.
3) “Abbott Elementary,” 8:30 p.m., ABC. The school tries a no-homework policy, drawing mixed reactions from the teachers. That follows “Scrubs,” with J.D. reluctantly working with Dr. Park.
4) “Secrets of the Dead,” 10 p.m., PBS. In an intriguing hour, archaeologists and historians ponder small kingdoms (in long-ago England) that could have inspired the legends of Camelot. That wraps a strong night of reruns: At 8 p.m., “Nature” views raptors; at 9, “Nova” looks at the Baltimore bridge collapse, and at steps to prevent a repeat.
5) “Chicago P.D.,” 10 p.m., NBC. It’s also a rerun night for NBC, wrapping with this effort to save a man who was abducted in Torres’ neighborhood. That follows “Chicago Med” (a dispute between Ripley and Archer) and “Chicago Fire” (Vasquez working to prove himself at 51).