Today on TV
NBA basketball (5:30 p.m., Root): Jazz at Nets
How I Met Your Mother (7 p.m., Ch. 2): Ted's friends get involved when he doesn't do a background check on his new lady friend.
Dancing With the Stars (7 p.m., Ch. 4): The competition continues.
The Voice (7 p.m., Ch. 5): The competition continues.
Alcatraz (7 p.m., Ch. 13): Rebecca and Doc close in on a man who might have information about all the returning criminals.
Hawaii Five-0 (9 p.m., Ch. 2): McGarrett takes part in a charity MMA fight.
Castle (9 p.m., Ch. 4): A bomb kills five people at a protest rally.
Smash (9 p.m., Ch. 5): The team deals with the workshop's after-effects
Inside Fenway Park: An Icon at 100 (9 p.m., Ch. 7): The centennial of the oldest and smallest ballpark in America.