In this week's installment of The Big Bang Theory (7 p.m., CBS/Ch. 2), Leonard unexpectedly invites Penny to a romantic dinner as they experiment with dating each other again in an episode titled "Beta Test."
Meanwhile, the ever-odd Raj develops a peculiar relationship with his phone's virtual assistant.
I don't care what anybody says. This show makes me laugh more than anything else on television.
Elsewhere on TV ...
Winter Wipeout (7 p.m., ABC/Ch. 4): Family members compete.
30 Rock (7 p.m., NBC/Ch. 5): Tracy is the star of an embarrassing viral video.
The Vampire Diaries (7 p.m., CW/Ch. 30): Bonnie looks for an answer in her dreams.
American Idol (7 p.m., Fox/Ch. 13): Auditions continue.
Men's college basketball (7 p.m., BYUtv): Loyola Marymount at BYU
Project Runway: All Stars (7 p.m., Lifetime): The designers create cocktail dresses.
Rob (7:30 p.m., CBS/Ch. 2): Rosa wants to have a traditional wedding ceremony.
Parks and Recreation (7:30 p.m., NBC/Ch. 5): Leslie and Ben disagree over her campaign strategy.
Person of Interest (8 p.m., CBS/Ch. 2): Carter finally meets Reese and asks her to help with a case.
Grey's Anatomy (8 p.m., ABC/Ch. 4): Richard's 10,000th surgery is a liver transplant.
The Office (8 p.m., NBC/Ch. 5): Robert thows a pool party.
The Finder (8 p.m., Fox/Ch. 13): Walter searches for a bullet that could exonerate a prisoner on death row.
The Secret Circle (8 p.m., CW/Ch. 30): Jake offers to help Cassie find out what happened to her father.
Up All Night (8:30 p.m., NBC/Ch. 5): Chris makes a new friend, and Reagan is jealous.
NBA (8:30 p.m., TNT): Utah Jazz at Dallas Mavericks
The Mentalist (9 p.m., CBS/Ch. 2): The son of a mob boss is murdered.
Private Practice (9 p.m., ABC/Ch. 4): A pregnant woman is badly beaten.
The Firm (9 p.m., NBC/Ch. 5): Mitch defends a therapist who is accused of killing the guy who was stalking her.
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