'MOTIVE': When a stunning socialite drowns after a celebration aboard a yacht, Detectives Flynn (R) and Vega (L) are faced with a number of potential suspects. (Jeff Weddell/ABC)

Broadcast live from Nashville, the “2014 CMT Music Awards” (CMT at 8 p.m.) lets country-music fans award their favorites as Lady Antebellum, Hunter Hayes, Miranda Lambert, Jennifer Nettles and many more perform. Actress and surprise country fan Kristen Bell hosts.

Auditions continue in Los Angeles and Chicago on “So You Think You Can Dance” (Fox at 8).

Finn and Clarke encounter a new enemy while Bellamy tries to save Jasper on “The 100” (CW at 9).

RETURNING SHOW: “Restaurant Stakeout” (Food at 9) Season 5 opens in Las Vegas with the owner of Buon Gusto Italian Restaurant desperately needing to overhaul his business to avoid losing all of his retirement funds.

Detectives Angie Flynn and Oscar Vega investigate a suspicious case on “Motive” (ABC at 10) when a socialite drowns and an unlikely person is to blame.

SERIES PREMIERE: The four-part docu-series “The Message” (BET at 10) explores the evolution and influences of hip-hop music and culture over the past 40 years. In the premiere episode, we look at how the musical genre began in New York and spread all across the country to California.

SERIES PREMIERE: “Untying the Knot” (Bravo at 10) follows a high-profile New Jersey divorce lawyer and her clients as she attempts to woo the appraisers who try to set a fair value on the assets a couple will split.

SERIES PREMIERE: On the new scripted comedy “Jennifer Falls” (TV Land at 10:30) Jennifer, a former high-powered executive, has fallen and hit every bump on the way to rock bottom. As a last resort and with her teenage daughter in tow, she is moving in with her mother and taking a job in the bar owned by her brother and passive-aggressive sister-in-law. Stars Jaime Pressly and Jessica Walter.

Actor Tom Cruise and reality-television stars Kendall and Kylie Jenner stop by “The Tonight Show Starring Jimmy Fallon” (NBC at 11:35), with music from Chrissie Hynde.

Comedian Arsenio Hall and horse jockey Victor Espinoza come to the “Late Show With David Letterman” (CBS at 11:35) along with a musical performance from the Afghan Whigs.

Actors Shailene Woodley and Aasif Mandvi are on “Jimmy Kimmel Live” (ABC at 11:35) with musical guest Iggy Azalea.

Rachel Lubitz