1) Olympics. NBC expects big ratings tonight (8 p.m. ET and beyond), with finals in four swimming events and in the individual, all-around portion of women’s gymnastics – a field hampered Tuesday by an injury to Simone Biles (shown here). The swimming is live, the gymnastics isn’t; you can see it live from 6-11 a.m. ET on Peacock. This afternoon (noon to 5 p.m.), NBC has U.S. teams in men’s water polo (Italy) and women’s volleyball (Turkey). At night, CNBC has men’s volleyball and women’s beach volleyball, both live; USA and NBC have early heats in track.
2) NBA draft, 8 p.m. ET, ABC and ESPN. Fresh from the play-offs, teams are already pondering the future. After lots of bad lottery luck in past years, the Detroit Pistons got the first pick. They’re expected to take Cade Cunningham, 19, who is 6-foot-8, but shoots and passes like a point guard.
3) “Grown-ish,” 8 p.m., Freeform. The return to college has hit with fierce jolts. Now Vivek – the A student expelled for drug-dealing – must face his straight-arrow parents. And Nomi must scramble, when the day-care center suddenly closes. And Zoey must explain to her dad about her drunken (but not legally binding) Mexican wedding. That last one brings a terrific visit by Anthony Anderson – Zoey’s dad here and on “Black-ish” – in an episode that’s short on comedy, strong on drama.
4) “Roswell, New Mexico,” 8 p.m., CW. If you missed Monday’s season-opener, a good one, here’s a second chance. In Los Angeles, Liz digs into her science research. In Roswell, her sister – back from the dead (that sort of thing happens here) – is recognized. Also, Max, Michael and Isobel face a jarring lookalike. At 9 p.m., “The Outpost” has Talon return to try to save the Blackbloods.
5) “O Brother, Where Art Thou?” (2000), 8 p.m., AMC. Two classic Coen Brothers films collide at 8 p.m. Some cable-viewers can get the brilliant “Fargo” (1996) on Epix; most can get this one. George Clooney leads escaped cons across 1930s Mississippi. Alongside the Oscar-nominated script and cinematography, there’s a glorious background of old-time music.