The first lady talks to the contestants about how adult behavior impacts kid behavior; congratulates the contestants on being good examples of health and fitness; and visits with each player and their family members. Then it's time for the workout, and Mrs. Obama joins in.
Elsewhere on TV ...
American Experience (7 p.m., PBS/Ch. 7): A look at the construction and mixed legacy of the Grand Coulee Dam.
Raising Hope (7 p.m., Fox/Ch. 13): Jimmy is worried that Sabrina is doing more than just studying with her handsome study partner. (A repeat airs at 7:30 p.m., because Fox has yanked the dreadful "I Hate My Teenage Daughter" off the schedule.)
Cougar Town (7:30 p.m., ABC/Ch. 4): Travis wants to be the photographer at the wedding, but Jules isn't sold on the idea.
Dancing with the Stars (8 p.m., ABC/Ch. 4): Another pair is eliminated.
The Voice (8 p.m., NBC/Ch. 5): Four hopefuls are eliminated.
New Girl (8 p.m., Fox/Ch. 13): Jess learns that Cece has been hiding her relationship with Schmidt.
Ringer (8 p.m., CW/Ch. 30): Bridget accuses Henry of murder.
Breaking In (8:30 p.m., Fox/Ch. 13): Molly has a crush on Oz.
Body of Proof (9:01 p.m., ABC/Ch. 4): The team tries to find out who is intentionally spreading a deadly virus.
Fashion Star (9 p.m., NBC/Ch. 5): Contestants create high-end looks.
Justified (11 p.m., FX): Raylan closes in on the Quarles.