Toby Keith co-hosts the 2012 CMT Music Awards (CMT, 8 p.m.) with Kristen Bell, of all people. Performers include Kenny Chesney, Luke Bryan, Lady Antebellum, Little big Town, Willie Nelson, Brad Paisley, Rascal Flatts, The band Perry, Hank Williams Jr., Zac Brown Band and a whole lot of former “American Idol” contestants, led by winners Carrie Underwood and Scotty McCreery but also including Lauren Alaina and Casey James. Fans vote on the winners for the event, held live at the Bridgestone Arena in Nashville.

There’s more than a half dozen season premieres tonight, including a couple of USA Network hits, “Necessary Roughness” (USA, 10 p.m.), which earned a surprising Golden Globe nomination for star Callie Thorne, “Royal Pains” (USA, 9 p.m.), with Mark Feuerstein as a concierge doctor who got to the Hamptons long before “Revenge.”

“Through the Wormhole with Morgan Freeman” (Science, 10 p.m.), the show that blends science and philosophy in trying to ask questions begins its third season with a loaded one: Is there a superior race?

“Million Dollar Listing Los Angeles” (Bravo, 9 p.m.) returns to see how the high end real estate market is doing in Southern California.

The Clampets go to Europe in the new season of “My Big Redneck Vacation” (CMT, 10:30 p.m.).

“Haunted Collector” (Syfy, 9 p.m.), about a guy who finds objects that are haunted, no, “possessions that are possessed,” starts a new season.

The “Man v. Food” host tries a new tack in his traveling gourmand career: on a quest for “Adam Richman’s Best Sandwich in America” (Travel, 9 and 9:30 p.m.).

Tryouts have been pretty entertaining on “So You Think You Can Dance” (Fox, 8 p.m.). Tonight’s is in Atlanta.

It’s the only new thing on network TV, aside from the new episode of “Dogs in the City” (CBS, 8 p.m.).

New Jersey could be eliminated in the Stanley Cup, with Devils at Kings (NBC Sports Network, 8 p.m.) and Los Angeles up 3-0.

David Spade and Regis Philbin show up for the eason finale of “Hot in Cleveland” (TV Land, 10 p.m.). All that the accompanying “Happily Divorced” (TV Land, 10:30 p.m.) can conjure up is Ralph Macchio.

In the “Secret Life of the Rainforest” (Smithsonian, 8 p.m.) we learn that they actually sit around all day and read gossip magazines. Stop that, rainforests!

“Around the World in 80 Plates” (Bravo 10 p.m.) has an easy stop: Italy.

Turner Classic Movies begins a month-long, 22 film, Wednesday night salute to the Immigrant Experience in America with “America, America” (8 p.m.), “An American Romance” (11 p.m.), “Hester Street” (1:15 a.m.), “Eat a Bowl of Tea” (3 a.m.) and “The Glass Wall” (5 a.m.).

In the NBA Playoffs San Antonio could be eliminated with Thunder at Spurs (TNT, 9 p.m.); Oklahoma City leads the series 3-2.

Daytime Talk

Kelly Ripa: Julian Hough, Neil Patrick Harris. The View: Joan Rivers, Rachael Ray. The Talk: Rita Moreno, Keri Glassman. Ellen DeGeneres: Hugh Laurie, Cheryl Hines, Ann Curry, Hope Solo & Maksim Chmerkovskiy, Marc Martel (rerun).

Late Talk

David Letterman: Jane Fonda, Mayor of London Boris Johnson, Jimmy Cliff. Jay Leno: Julia Louis-Dreyfus, the Beach Boys. Jimmy Kimmel: Kim, Kourtney & Khloe Kardashian, Adam Carolla, K’Naan. Jimmy Fallon: Julianne Hough, Colin Hanks, Leon Redbone. Craig Ferguson: Sean Hayes, Lena Dunham (rerun). Tavis Smiley: Buzz Bissinger. Carson Daly: Seann William Scott, Dr. Dog (rerun). Jon Stewart: Michael Fassbender. Stephen Colbert: Neil Patrick Harris. Conan O’Brien: Jennifer Love Hewitt, Breckin Meyer, J.D. McPherson. Chelsea Handler: Aubrey Plaza, Greg Fitzsimmons, Loni Love, Matt Braunger.