1) “CMA Fest,” 8-11 p.m., ABC. Thomas Rhett and Kelsea Ballerini host and do two songs apiece. One of hers is with the Chainsmokers, in a night stuffed with duets. Brothers Osborne and Brooks & Dunn do two, one adding Ashley McBryde. There’s Tim McGraw with Luke Combs, Maren Morris with Brandi Carlisle, Carrie Underwood with Joan Jett, Keith Urban with Billy Ray Cyrus and Lil Nas X. There are also solo stars – Blake Shelton, Luke Bryan, Miranda Lambert, Dierks Bentley and more.
2) “Preacher” season-opener, 9 p.m., AMC, rerunning at 10 and midnight. “It feels like the end,” Tulip says. She’s right, of course; this starts a 10-episode season in which Jesse (formerly a small-town Texas preacher) wants to confront God, aided by Cassidy (a fallen angel) and Tulip. Tonight, Jesse tries to pierce a fortress in the historic Mosada. It’s well-done, but be warned: This is extremely violent and pushes TV’s torture obsession to brutal extemes.
3) “Last Man Standing,” 7 and 7:30 p.m., Fox. The first rerun finds everyone anxiously awaiting Eve’s return from the Air Force Academy. The second is particularly good: Mike (Tim Allen) hasn’t expressed his emotions about his late father. Now he envisions that, with Robert Forster returning as his dad.
4) “Masterpiece: Grantcheser,” 9 p.m., PBS. So far, Will (the new vicar) has seemed kind of serene. But now someone from his past has been killed. Helping out, Geordie (the local cop) is surprised by Will’s roots.
5) And more: At 8 p.m., Discovery launches “Serengeti,” a lushly filmed documentary series. At the same time, Showtime reruns last week’s “The Loudest Voice,” with trouble between Roger Ailes (Russell Crowe) and Gretchen Carlson (Naomi Watts). That sets up a pivotal, new episode a 10: Ailes fires Carlson, unaware that she’s been recording his sexual advances.