CMA: Country's Night to Rock (7 p.m., ABC/Ch. 4) is loaded with - you guessed it! - country music performances from some big-name acts.Performers include Jason Aldean, the Band Perry, Dierks Bentley, Miranda Lambert, Brad Paisley, Rascal Flatts, Carrie Underwood and Keith Urban.Elsewhere on TV ...Food Fighters (7 p.m., NBC/Ch. 5): A stay-at-home mom competes against professional chefs.Matador (7, 8 and 10 p.m., El Rey): Annie and Noah find out more information on Galan.Rizzoli & Isles (7 and 9 p.m. TNT): The team tries to find and protect a murder witness.America's Got Talent (8 p.m., NBC/Ch. 5): A dozen of the top 48 acts perform.Sullivan & Son (8 p.m., TBS): A woman comes between Owen and Ahmed.Perception (8 and 10 p.m., TNT): A missing FBI agent is found dead.Pretty Little Liars (9 and 11 p.m., ABC Family): Aria suspects Hanna lied to her while she was drunk.Chasing Life (10 p.m., ABC Family): April prepares for her first chemo treatment.Royal Pains (10 p.m., USA): Evan and Ray hold a grand opening for their joint venture.Tyrant (11 p.m., FX): Amira reveals a 20-year-old secret, causing Barry to see his father in a new light.Finding Carter (11 p.m., MTV): Carter reveals her feelings for Crash.Covert Affairs (11 p.m., USA): Annie and McQuaid search for an ex-CIA officer in Azerbaijan.