All bets are off when Bikal and Gota merge, as castaways reunite to plot a potential blindside in the new tribe. Also, with individual immunity now on the line, castaways must stomach exotic foods of beetle larvae and brains during a classic Survivor food eating challenge.

The remaining AMERICAN IDOL finalists perform live in hopes of impressing both the judges and the nation. After the performances, it is up to America to vote for their favorite singers. Tune in to see who "wows" the judges and who falls flat

Frankie can't hide her disappointment over whom "The Bachelor" chooses to marry and ends up moping around the house for days about it; Mike tries to toughen Sue up when she joins the school's tennis team and continually compliments her opponents during their matches; and Axl and Cassidy try to figure out where their relationship stands after their big fight.

When a young woman meets a violent death after partying at Verdant, Detective Lance and his new partner, Detective Hilton inform Oliver and Tommy that she was on the drug Vertigo. Oliver immediately pays a visit to the mental institution where The Count is locked up, but finds he is in no condition to deal drugs. However, when The Count escapes and Starling City is flooded with even more Vertigo-related violence, Oliver and Diggle make it their mission to track him down. After Detective Lance uncovers incriminating evidence against him, Tommy goes to great lengths to clear his name, and the fallout from his actions leads Tommy down a new, unexpected path. In a flashback to the island, Oliver recalls the lessons he learned from Slade and Shado.

When George agrees to participate in the "Dads of Chatswin" calendar, he becomes obsessed with his body image and alienates Dallas. Meanwhile Dalia buddies up to Tessa, and Lisa discovers her true motives.

An unpromising lump of metal found in a 2,000-year-old shipwreck turns out to be an extraordinary treasure: the world's first computer. NOVA follows the ingenious detective work that painstakingly discovered the truth about the ancient Greek device: it was an astonishingly sophisticated astronomical calculator and eclipse predictor, unrivaled until the era of modern science and believed to be from the workshop of Archimedes.

The BAU goes to Morgan's old neighborhood in urban Chicago in search of an UnSub targeting middle-aged men, and a clue leads Morgan to believe that they are after someone connected to the man who molested him as a child.

Despite his seemingly normal and supportive upbringing, and various diagnoses and prescriptions, Henry has become increasingly antisocial and his capacity for violence is escalating. The question for our detectives is, "Is Henry a born psychopath?" To help answer that question, Benson & Co. will turn to Dr. George Huang for his expert opinion.

Kevin discovers that Crowley has found a way to make mental contact with him, and calls the Winchesters. When they arrive, Kevin tells them that he's found out the second trial. To succeed, Sam must travel to Hell, rescue an innocent soul, and bring it to Heaven. With the help of a Reaper, Sam gets to Hell and discovers that he must rescue an old friend. Meanwhile, Dean must turn to another old friend to rescue Sam when his escape route is cut off.

When Phil takes Claire to the hospital for her angiogram, they encounter a family that is basically their future selves, and they're not sure they like what they see. Manny drags Jay on a visit to a prospective private school, and Mitch and Cam organize a fun "girls day" for Gloria and Lily - but it becomes a spontaneous "cultural day" instead.

Krista's mother pays a visit to Yellowknife and throws Krista's life into turmoil and Bobby gets his first real chance to play "family" with Connor and Petra.

An undercover detective investigating a criminal organization is tormented by the possibility that her police work led to the fatal shooting of her son.

It's Culture Day at Xavier and each teacher has been asked to model their classroom after a country.

Polly leaves her irresponsible husband, Julian, and taking her young daughter, Natalie, moves back in with her unpredictable parents, Elaine and stepfather Max. Apprehensive but determined to get her life back on track, Polly jumps into the dating scene and reluctantly leaves Natalie home for a night with her parents.

When the CSIs find a body near a forest reserve, they discover what might be a serial killer and his bizarre lair.

After Gus is tasked with taking care of his girlfriend's son Maximus for the day, he jeopardizes their relationship when an innocent trip to the circus turns deadly.

The funeral of a major drug dealer brings gangsters of all kinds out of the woodwork, there is chaos in the streets but as our cops learn sometimes the greatest threats come from within. Lydia and Ruben investigate the drug related murder of Sgt. Hill's son; they discover police corruption in the process and clash over how to handle it. Ben suspects that Sammy did not destroy the tape and decides to take matters into his own hands with tragic consequences. John sinks farther into his loneliness.

Mills finds himself the target of resentment from some colleagues when Severide supports his desire to join Squad. Tara, a paramedic candidate, joins Dawson and Shay on the job for a few shifts. Meanwhile, Shay comes to the aid of Cindy Herrmann, who suffers from pregnancy complications while her husband Christopher is out of town. Elsewhere, Dawson and Casey draw closer as the grand opening of Molly’s draws near, and Casey receives a surprise visit.

Rayna takes her children and sister with her on tour in NYC, but Rayna doesn't like the influence Juliette is having on her daughters. Meanwhile Dante gives Juliette some career guidance that helps her see him in a whole new way; Deacon's feelings for Stacey force him to reconsider his life on the road; a hunky new neighbor, Will, befriends Gunnar and Scarlett; Gunnar is thrown by Scarlett's hiding information from him; Lamar threatens Peggy; and Avery jeopardizes his own future.

Jordan gets into a fight with Jessica; Marlon reveals a secret.

The year's most memorable moments in pop culture including special guests RuPaul, Rich Sommer, Jim Rash, Seth Green and Kate Flannery.

The Duck Commander team is invited to unveil a wing of the local Bass Pro shop that will feature their products. Meanwhile, Miss Kay attempts to get some quality time in with her grandkids when she invites herself out with John Luke, Sadie and their friends.

Philip and Elizabeth are put to the test when a routine mission goes horribly wrong. Stan and the FBI are pushed to their limit when one of their own goes missing.

Jimmy Laszlo learns Grace's true identity. Alec takes revenge against a rival gang. Jimmy strikes a deal with Grace to find the traitor in his organization.

Sheryl Sandberg

Darius Rucker

A.C. Grayling

Louis CK, Rachel Maddow, the Flaming Lips

Rosario Dawson, Max Greenfield, Gloriana

After Francesca is released from custody, she is upset to find out that her father and daughter want nothing to do with her. She finally ends up realising that being a good mother and a gangster's wife dont go together but as she is prepared to go straight, her worst nightmares ends up being realised. Mick's release from prison is not a happy event as Kim is desperate to rebuild their marriage, but he is felling traumatised by his imprisonment and wants nothing to do with her. Harriet is upset after Ian ends their relationship.

The show talks to some of the people at the forefront of the data revolution and takes a look at the possibilities and the promise of the age of big data.