Hosted by comedian Aisha Tyler, cast members Ryan Stiles, Wayne Brady and Colin Mochrie, along with guest comedian Jeff Davis, put their comedic skills to the test through a series of spontaneous improv games that are prompted only by random ideas supplied by the studio audience. The four performers must use the little information they have and their wild imaginations to depict different characters and an array of scenes, as well as perform songs. After each round of improvisation, Aisha will dole out points to our four performers and declare a winner at the end of every episode.

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An intriguing riddle from "A" has the Liars hitting the road and heading to Ravenswood, where they are surrounded by some familiar faces. During a very special magic show, one Liar pulls a disappearing act, leaving the other three scrambling to make sure she hasn't succumbed to "A's" tricks. But before they can hightail it out of Ravenswood, they make a shocking discovery that proves that everything they thought they knew about "A" and the "A" team might be wrong. With this discovery, the Liars may just have started "World War A" - #WorldWarA. Meanwhile, Hanna and her mother's joyous reunion is cut short when "A's" sights are set on a new target. And Toby uncovers some surprising information about Wren.

Twelve promising semifinalists take the stage for a shot at the finals and the million-dollar prize.

When two teens claim that they got scammed by a mystery woman with an inside connection to the shop, Seth brushes them off, but Ashley makes it her job to find out if they are telling the truth. Are they just dumb kids who trusted the wrong person with a deal that was too good to be true? Or do the Golds have another thief on their team? Plus, Les sets his sights on a McFly ride, and teaches a Jersey Boy how it's done in the D. Share this one proudly.

After her secret is reveled, Katheryn tells everyone what she really knows about Jim's secret activities. Jeffery finally discloses his love for Wyatt.

When a late-night amateur drag race turns deadly, the squad works quickly to solve what turns out to be a particularly dangerous case. As evidence unfolds, Jane suspects that the motive for murder may have been an attempt to conceal drug trafficking. However, when she turns to Lt. Martinez for help he seems to be thwarting her investigation.

Annie finds she has met her match when she has to work to halt the illegal sale of deadly weapons and is teamed up with a seasoned operative. Meanwhile, circumstances force Auggie to deal with past demons' and Calder's suspicions of Annie Walker grow.

After a demon-based foundation challenge with guest judges James Wan and Lin Shaye, the remaining contestants take on classic Mother Goose characters for a double-elimination with instructions to put a modern spin on them.

Merlin and Alan join forces to go after Levi's business. Jolin's authority is tested in Paradise. Big Steve is found and revenge is taken. Esther tries to make peace with Levi while Merlin and Wayne's friendship comes to an end.

A confrontation between Danny and Archie at a soccer team party reveals treachery lurking among the in-crowd. Lacey must make a choice to keep her popular friends, at Danny's expense, or speak out for what she thinks is right. Tyler continues to pursue Jo and Jo makes a decision she might regret. Lacey also discovers that Phoebe may hold the key to unlocking new clues about Regina's mysterious past. Meanwhile, Kyle's suspicions rise when private investigator Marilyn unearths shocking new evidence to refute Karen's confession. And Tess realizes it's time to call on the help of an old friend.

The next stop on the cosplay tour is Megacon in Florida. While the contestants prepare new costumes and Holly deals with the aftermath of her first competition, Yaya creates a collectible action figure of herself.

Artis' life changed five months ago when he met Jess, a sexy, blonde beauty, on Facebook. Although Artis and Jess each were in relationships at the time and still living with their significant others, they still believed they had found the true love they so desperately wanted. Even though Artis has seen only one photo of Jess, he's willing to risk everything to be with her and is ready to meet Jess in person.

Teddy Roosevelt makes a name for himself, hold-outs fight to the bitter end at The Alamo, and Billy the Kid goes on the run from lawman Pat Garrett.

Tempers flare when artists get the chance to work on Dave; an unlikely artist wins the Flash Challenge; and multiple human canvasses are left with bad tattoos.

Blue becomes suspicious of Keira's brief relationship with Luke, and their relationship is tested when he finds out she wasn't honest about sleeping with her co-star. Meanwhile, Tasha goes on an apology tour and takes the final steps in getting closure. Jason and Chardonnay remain at odds over him not wanting to give up football. Finally, Malik reunites with Tee Tee, both personally and professionally, but suffers a devastating blow when Franko shows up and causes problems.

Harvey clashes with Stephen over Ava's case, among other issues. Meanwhile, things are still tense between Harvey and Jessica as they strategize how best to defend Ava. And Louis enlists Rachel in his battle with Nigel over a broken contract? and heart.

Morretti faces criminal charges after taking things into her own hands while working on a dangerous case. Pierce and Donnie strive to clear her name, but as conflicting evidence builds, even Kate begins to question her own innocence.

The Bengals travel to Dallas for a preseason encounter with the Cowboys; the coaching staff meets to make important roster decisions as the deadline approaches.

Nick Kroll and John Mulaney are the guests. Also: a game of 'How Many Things'.

When Fiona reaches out to Kip, she finds out that the campaign investigation has targeted a new suspect, and Fiona may be off the hook! But faced with her impending divorce and the loss of Kip's support, Fiona takes on a batch of new clients, including a long-distance couple who are planning their first in-person meeting.

Anderson Cooper, Alison Pill, Robert Randolph and the Family Band

Josh Duhamel, J.B. Smoove, Macklemore & Ryan Lewis

The hopefuls battle it out in a culinary duel over three different rounds. In eachround, they have just thirty minutes and an open pantry to try and come up with their winning dishes. At the end of the show there is another elimination.

Comedian and television host, Dara - Briain, joins Adam Hills, Josh Widdicombe and Alex Brooker to discuss the week's stories, live in front of a studio audience.