8 p.m., FOXAvril Lavigne serve as guest judges as auditions continue in Los Angeles.
8:30 p.m., ABCJay Harrington) helps his brother (guest star Eddie McClintock) get a job for the company that supplies Veridian Dynamics' lab equipment.
9 p.m., ABC
10 p.m., A&E;
11 p.m., TBSModern Family's Sofia Vergara.
Also on the airwaves...
Scrubs, 8 p.m., ABC
NCIS, 8 p.m., CBS
The Biggest Loser, 8 p.m., NBC
NCIS: Los Angeles, 9 p.m., CBS
Human Target, 9 p.m., FOX
Psychic Kids: Children of the Paranormal, 9 p.m., A&E;
Wild Recon, 9 p.m., ANIMAL
Millionaire Matchmaker, 10 p.m., BRAVO
White Collar, 10 p.m., USA
Paranormal Cops, 10:30 p.m.
NCAA Men's Basketball:Michigan State v. Michigan, Clemson v. Boston College, Miami v. Maryland, Kentucky v. South Carolina, Rutgers v. Marquette
NCAA Women's Basketball: Louisiana Tech v. Nevada
NHL Hockey: Coyotes v. Red Wings
ATP Tennis: Australian Open men's and women's quarterfinals
What are you watching tonight?