1) “It’s Always Sunny in Philadelphia” season-opener, 10 and 10:30 p.m., FXX. There are plenty of nice, normal situation comedies that last a few years. Then there’s “Sunny” (shown here in a previous episode), the longest-running non-cartoon sitcom ever. As its 16th season (two more than “Ozzie & Harriet”) starts, people are as cleverly abnormal as ever. The opener has a funny chat about inflation, then some wild schemes. The second is darker, with relatives, toilet gags and Frank’s pistol.
2) Basketball finals, 8:30 p.m. ET Wednesday and Friday, ABC, pregame at 8. The third and fourth games of the best-of-seven series move to Miami, which is used to this. The Heat reached the finals six previous times in their 24-year existence (including four straight with LeBron James), winning three times. The Denver Nuggets, by comparison, are in their first finals in 46 NBA years.
3) “MasterChef” and “Food Stars,” 8 and 9 p.m. Wednesday, Fox. Where would Fox be, if no one had invented food? Monday, had the season-opener of Joel McHale hosting “Crime Scene Kitchen”; now Gordon Ramsay’s shows are back-to-back. First, the auditions continue for home chefs. Then pros try entrepreneur skills; they create a food-and-wine pairing and pitch it to wine experts.
4) “Riverdale,” 9 p.m., CW. This final season has Archie’s gang back in the low-stakes world of small-town 1950s. Veronica – an actress transplanted to Riverdale after getting in trouble – plans a “ghost show.” Also, Jughead finds a clue in an emerging mystery. That follows a “Nancy Drew” in which Ace suspects Nancy is holding something back about the local curse.
5) “Burden of Proof” conclusion, 9 and 10 p.m., HBO. Here’s the second half of a documentary that started Tuesday on HBO (and is also on Max). Jennifer Pardos was 15 when she disappeared in 1987, Her brother Stephen was away to college at the time; decades laters, he began to suspect his parents. His investigation created fresh discoveries about Jennifer’s writings and about other suspects.