Today on TV

The Big Bang Theory (7 p.m., Ch. 2): Penny nurses Sheldon when he gets sick.

How I Met Your Mother (7:30 p.m., Ch. 2): Barney is determined to learn which of 64 women he's mistreated is ruining his love life.

Two and a Half Men (8 p.m., Ch. 2): Alan dates his ex-wife's friend.

New Amsterdam (8 p.m., Ch. 13): A young murder victim reminds John of the son he lost a century ago.

Today on TV

NCAA women's basketball tournament (5:30 and 7:30 p.m., ESPN): A pair of regional finals.

Dancing With the Stars (7 p.m., Ch. 4): The remaining contestants perform.

NBA (7 p.m., Ch. 14): Wizards at Jazz

American Experience (8 p.m., Ch. 7): In 1897, Arctic explorer Robert Peary brings five Eskimos to New York to be studied.

New Adventures of Old Christine (8:30 p.m., Ch. 2): It's stunt time — Julia Louis-Dreyfus' old Seinfeld co-star, Jason Alexander, guest stars as Christine's gynecologist.

CSI: Miami (9 p.m., Ch. 2): Horatio is arrested for murder.

Medium (9 p.m., Ch. 5): In the conclusion of a two-parter, Allison and Cynthia learn the fate of Cynthia's daughter.