Dierks Bentley, Elle King and Lainey Wilson host a night of highlights from the 50th CMA Fest (ABC, 8 p.m.) held in Nashville in June, where performers ranged from Luke Bryan to Luke Combs, plus Hardy and Lainey Wilson, pictured above.

Also slated to perform: Alabama, Ashley McBryde, Avril Lavigne, Carley Pearce, Cody Johnson, Dan + Shay, Daris Rucker, Dierks Bentley, Elle King, Eric Church, Jason Aldean, Jelly Roll, Jo Dee Messina, Jon Pardi, Jordan Davis, Keith Urban, Leon Bridges, Little Big Town, Miranda Lambert, Old Dominion, Reba McEntire, Tanya Tucker, Tim McGraw, Tyler Hubbard and Vince Gill. No wonder it’s three hours.

“Mayans M.C.” (FX, 10 p.m.), the spinoff of “Sons of Anarchy” that itself lasted five seasons, comes to an end with a final episode with some sort of big battle if not some kind of resolution. 

Dennis tries to lower his blood pressure on the season finale of “It’s Always Sunny in Philadelphia” (FXX, 10 p.m.). 

“The Deepest Breath” (Netflix, streaming) is a documentary about a pair of free divers who go deep in the ocean with different approaches.

The evolution of canines from beasts to human companions is traced on “Human Footprint” (PBS, 9 p.m.).