Wednesday's TV Highlights: 'America's Got Talent' on NBC

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SERIES

Hell's Kitchen It's the men versus the women in the opening challenge of the two-hour season premiere of this cooking competition featuring an appearance by chef Wolfgang Puck. 8 p.m. Fox

America's Got Talent The final six acts are revealed in this results episode, and teenage classical singer Jackie Evancho performs. 9 p.m. NBC

Nova The new episode "Vaccines — Calling the Shots" documents the impact skipping vaccinations is having on the return of such illnesses as whooping cough, measles and mumps. 9 p.m. KOCE

Legends While on leave following his confrontation with the Colonel, Martin (Sean Bean) begins looking into his own past in this new episode. 9 p.m. TNT

Taxi Brooklyn Though he's initially thrilled to get a visit from his son and daughter-in-law, Leo (Jacky Ido) soon has to be concerned about keeping them out of harm's way in the season finale. Chyler Leigh, James Colby, Jennifer Esposito and Ally Walker also star.10 p.m. NBC

Franklin & Bash In this new episode Peter and Jared (Mark-Paul Gosselaar, Breckin Meyer) defend a high school newspaper reporter who has been accused of running a smear campaign against another student. 10 p.m. TNT

Graceland The team's plans start to fall apart as they prepare to arrest Sid (Carmine Giovinazzo) and the Solanos in the season finale. Aaron Tveit, Daniel Sunjata and Vanessa Ferlito star. 10 p.m. USA

TALK SHOWS

CBS This Morning Scott Stein, CNET senior editor. (N) 7 a.m. KCBS

Today Jimmie Johnson; Jessica Chastain; Josh Charles; Joy Bauer; Echosmith performs; Jenna Dewan Tatum. (N) 7 a.m. KNBC

KTLA Morning News (N) 7 a.m. KTLA

Good Morning America Harry Connick Jr.; Connie Britton; Rachael Ray; Cameron Mathison and J.R. Martinez. (N) 7 a.m. KABC

Good Day L.A. (N) 7 a.m. KTTV

Live With Kelly and Michael Ashley Judd; Justin Long; NASCAR champion Jimmie Johnson. (N) 9 a.m. KABC

The View Jesse Tyler Ferguson and Eric Stonestreet; Martin Short; Barbara Walters' style through the years. 10 a.m. KABC

The Dr. Oz Show The biggest sleep problems; a sleep clinic; how people sabotage their slumber. (N) 10 a.m. KCOP; 2 p.m. KTTV

The Doctors A woman goes to great lengths to look like Kim Kardashian. (N) 11 a.m. KCAL

The Talk Sharon Stone; Kevin Frazier. (N) 1 p.m. KCBS

The Queen Latifah Show Matthew McConaughey. 2 p.m. KCBS; 7 p.m. KCAL

Dr. Phil A man was acquitted of murder charges in the death of a drunken driver who killed his sons. (N) 3 p.m. KCBS

The Ellen DeGeneres Show Channing Tatum ("Book of Life"); Nicki Minaj. (N) 4 p.m. KNBC

Tavis Smiley (N) 11 p.m. KOCE

The Daily Show With Jon Stewart (N) 11 p.m. Comedy Central

Conan (N) 11 p.m. TBS

Charlie Rose (N) 11:30 p.m. KOCE

The Colbert Report Author Henry Kissinger. (N) 11:30 p.m. Comedy Central

The Tonight Show Starring Jimmy Fallon Hugh Jackman; Nick Offerman; Luke Bryan performs. (N) 11:34 p.m. KNBC

Late Show With David Letterman Dr. Phil McGraw; Katharine McPhee; Death From Above 1979. (N) 11:35 p.m. KCBS

Jimmy Kimmel Live Queen Latifah; Dale Earnhardt Jr.; Panama Wedding performs. (N) 11:35 p.m. KABC

Late Night With Seth Meyers Connie Britton; Ben McKenzie; Vance Joy performs. (N) 12:36 a.m. KNBC

The Late Late Show With Craig Ferguson Cheryl Hines; Lawrence Block. (N) 12:37 a.m. KCBS

Nightline (N) 12:37 a.m. KABC