Today on TV

How I Met Your Mother (7 p.m., Ch. 2): Barney is on a quest to have a perfect week.

Chuck (7 p.m., Ch. 5): Chuck must turn a ring scientist into a spy for the CIA.

House (7 p.m., Ch. 13): Foreman's brother (Orlando Jones) pays him a surprise visit.

NBA (7 p.m., FSN): Mavericks at Jazz

Accidentally on Purpose (7:30 p.m., Ch. 2): Billie tries to get Zack to help out around the apartment.

Two and a Half Men (8 p.m., Ch. 2): Alan lands in jail after a bar fight.

Heroes (8 p.m., Ch. 5): Samuel reveals Noah's secret past to Claire to convince her to switch to his side.

24 (8 p.m., Ch. 13): Renee negotiates with a German arms dealer; the peace deal is in jeopardy.

Life Unexpected (8 p.m., Ch. 30): Cate and Lux meet Baze's overbearing parents.

Men of a Certain Age (8 and 11 p.m., TNT): Joe's bookie makes him an offer; Terry moves.

Big Bang Theory (8:30 p.m., Ch. 2): Sheldon uses Penny to help him solve a physics problem.

CSI: Miami (9 p.m., Ch. 2): The team has 24 hours to determine if a prisoner on death row is really guilty.

Secret Life of the American Teenager (9 p.m., ABC Family): Amy and Jimmy go on a date.

Greek (11 p.m., ABC Family): Rusty's popularity soars.

Kell On Earth (11 p.m., Bravo): Only Bravo could bring us a reality show about rude, obnoxious "public relations guru" Kelly Cutrone, who works in the world of high fashion, and pretend it's entertaining.

Damages (11 p.m., FX): Patty digs into the Tobin family's past.