1) “Modern Family” season-finale, 9 p.m., ABC. This show shines when it can throw everyone together amid chaos. Now – as we get closer to the arrival of Haley and Dylan’s baby and possibly their wedding – everyone’s here. That includes all 11 regulars, plus Dylan’s flaky mom, Phil’s dad (techno-version) and even a couple strangers, one holding a celebrity dog. It’s a big, broad, funny episode that remains true to its characters, propelling “Family” toward its final season.
2) “Schitt’s Creek” season-finale, 10 p.m., Pop. Here’s another clever comedy wrapping its second-to-last season. This episode focuses on Emily Hampshire, a gifted Canadian who played the mad genius in “12 Monkeys.” Here, she’s low-key Stevie, starring in the local musical … until she goes missing.
3) “In the Dark,” 8 p.m., CW. We get another chance to see the first episode, before the second one airs Thursday. It’s a fairly good opener, neatly avoiding stereotypes. Murphy is blind, but don’t expect any heightened senses; also, don’t expect her to be warm, cuddly or (at first), even likable. She drinks heavily, has random sex, clashes with her parents … then comes across a mystery that consumes her.
4) “Empire,” 8 p.m., Fox. The tour continues, but the family is gathering in support of Andre, who has Stage 4 lymphoma cancer. Jamal (Jussie Smollett) is comforted by his fiance Kai; also, Cookie and Lucious hash out their various wrongdoings.
5) “Nature,” 8 p.m., PBS. A 92, David Attenborough keeps explaining the natural world to us. On a grand scale, he narrates “Our Planet,” the epic Netflix series. On a (much) more intimate level, he offers this look at the wonders of an egg.