TV Highlights: 'Glee' sings Justin Bieber, 'Nova' explains 'Jeopardy!' supercomputer
Tuesday night, the three-hour conclusion to the Westminster Kennel Club Dog Show (USA at 8) names the Best in Show, while preempting a new episode of "White Collar" (which will resume next week at 10).
If you caught Watson, the IBM computer, facing off against Ken Jennings and Brad Rutter on "Jeopardy!" this week, all those man-vs.-machine questions are tackled on "Nova" (WETA at 8).
As if it hasn't spread far enough, Justin Bieber fever hits "Glee" (Fox at 8) when Sam decides to start a tribute band called the Justin Bieber Experience, and the other glee club guys want to join.
The Powells find themselves in quite a bit of danger on "No Ordinary Family" (ABC at 8) when a scary shape-shifter is tasked with infiltrating their household; meanwhile, JJ tries to solve a cold case murder to help his ex-girlfriend.
After the Belgravian defense minister is nearly killed on "NCIS" (CBS at 8), the team is required to protect his daughter, who's doing a study program in America.
New documentary series "Breaking Down Bars" (OWN at 9) chronicles a group of female prisoners at a correctional facility in Indiana. The premiere focuses on one inmate as she starts a 15-year sentence and another as she faces a difficult visit with her parents.
The Chance family has never really cared about cleanliness on "Raising Hope" (Fox at 9), but Jimmy feels compelled to become a germaphobe once Sabrina points out how many germs live in his household.
"Our America With Lisa Ling" (OWN at 10), a new docu-series hosted by Lisa Ling about all types of people across the country, is previewed by Hank Stuever on Page C1.
An Internet billionaire sues a film studio for defamation on "The Good Wife" (CBS at 10), and Will and Diane take on the case - but Will has other, more personal, things to worry about when Alicia finally confronts him about the message he left on her voice mail.
Lights finds himself getting lonely when he moves away from his family to practice without any distractions on "Lights Out" (FX at 10), but can't get any peace and quiet when a reporter tracks him down with many annoying questions.
Actor Liam Neeson and animal expert Dave Salmoni are the guests on "The Tonight Show With Jay Leno" (NBC at 11:35), along with singer Gretchen Wilson.
"Late Show With David Letterman" (CBS at 11:35) hosts the 2011 Sports Illustrated swimsuit issue cover model, along with a Top 10 list presented by Joy Philbin and a performance from musical guest Josh Groban.
- Emily Yahr