Chef Ashley Christensen of Poole's Diner  in Raleigh takes on Food Network star Bobby Flay in Sunday night's episode of Iron Chef America. Tune in at 10 p.m. on the Food Network. If you are on twitter, use the #slayflay hashtag.

Photo by Staff photographer Travis Long.

Go HERE to read a profile I wrote earlier this year about Christensen.

National Memorial Day Concert (8pm, UNC-TV) - Gary Sinise and Joe Montegna host this tribute to America's military personnel, with special focus this year on Korean War veterans and the sacrifices of military widows whose spouses served in Iraq and Afghanistan. From the US Capital's West Lawn, the show features Colin Powell, Lionel Richie, Brad Paisley, and the National Symphony Orchestra. It repeats at 9:30.

60 Minutes: Special Edition, The Deadliest Weapon (8pm, CBS) - This special edition of "60 Minutes" features rare video of a tribute to fallen soldiers at Bagram Air Base in Afghanistan. It's part of an update to the Byron Pitts story about a bomb disposal unit in Afghanistan.

Dateline (8pm, NBC) - Matt Lauer updates his exploration of Autism, interviewing Dr. Andrew Wakefield, who claims there is a link between autism and vaccines.

Taking Chance (9pm, HBO) - In honor of Memorial Day Weekend, HBO is bringing back their Emmy-winning movie with Kevin Bacon as a Marine officer who escorts the body of a young soldier back to his family. 

Iron Chef America (10pm, Food) - "Take Home Chef" (and former "Celebrity Apprentice" contestant) Curtis Stone goes against Bobby Flay.

Merlin (8pm, NBC) - Merlin is saved from a magical winged creature by young Lancelot (Santiago Cabrera), and then tries to help Lancelot become a knight in King Arthur's court.

Army Wives (10pm, Lifetime) - Chase comes home early but has difficulty readjusting, and Joan decideds to christen her baby before she's deployed.

Iron Chef America (10pm, Food) - A showdown between New York Chef Sue Torres and Iron Chef Bobby Flay. Judges are Isaac Mizrahi, Mark Bittman, and Isabel Gonzalez.