Leonard buys a dining table, which might cause Sheldon to break up with Amy on The Big Bang Theory (7 p.m., CBS/Ch. 2).
At the same time, Howard is offered the chance to return to space, and Bernadette isn’t sure she wants him to go.
Elsewhere on TV ...
Community (7 p.m., NBC/Ch. 5): Jeff helps Duncan romance Britta.
American Idol (7 p.m., Fox/Ch. 13): Contestants face elimination.
The Vampire Diaries (7 p.m., CW/Ch. 30): Stefan decides to track down Damon.
Under the Gunn (7 and 11 p.m., Lifetime): The contestants have to create steampunk looks.
Women’s college basketball (7 p.m., P12N): Southern California at Utah
The Millers (7:30 p.m., CBS/Ch. 2): Nathan spends time with Tom to see if they have anything in common.
Parks and Recreation (7:30 p.m., NBC/Ch. 5): Ben tries to surprise Leslie on their anniversary.
Two and a Half Men (8 p.m., CBS/Ch. 2): Alan tells Lyndsey she has to choose between him and Larry.
Grey’s Anatomy (8 p.m., ABC/Ch. 4): Alex reacts to the news about his father; Callie and Arizona make a decision about their relationship.
Hollywood Game Night (8 p.m., NBC/Ch. 5): Sean Hayes, Allison Janney, Don Cheadle, Christina Applegate, Jason Sudeikis and Olivia Wilde are the celebrity guests.
Rake (8 p.m., Fox/Ch. 13): Two people confess to the same murder.
Reign (8 p.m., CW/Ch. 30): The younger children of Queen Catherine and King Henry are kidnapped.
King of the Nerds (8 and 11:30 p.m., TBS): Contestants navigate a laser maze to "rescue" George Takei.
The Crazy Ones (8:30 p.m., CBS/Ch. 2): Zach has a run-in with an ex.
Elementary (9 p.m., CBS/Ch. 2): Holmes and Watson are forced to partner with Gareth Lestrade, Sherlock’s former Scotland Yard colleague, on a bombing investigation.
Scandal (9 p.m., ABC/Ch. 4): Vice President Sally Langston makes a shocking announcement.
Parenthood (9 p.m., NBC/Ch. 5): Julia’s siblings offer their support; Crosby and Jasmine move in with Zeek and Camille.
The Red Road (10 p.m., Sundance): For a review of this engaging new six-part series, go here.
Vikings (11 p.m., History): In the second-season premiere, the battle between Ragnar’s forces and King Horik’s army begins Thursday on TV: Are Sheldon and Amy breaking up on ‘Big Bang Theory’?
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