Hosted by comedian Aisha Tyler, cast members Ryan Stiles, Wayne Brady and Colin Mochrie, along with guest comedian Gary Anthony Williams 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.

Hanna has some explaining to do to her parents and the police after she's found with something she shouldn't have. Mona spills a secret of Spencer's to the other Liars - leading to hurt feelings amongst the group. Emily tries to help Hanna, only to have "A" turn the tables. And Aria helps out a friend of Mike's, who gets the wrong impression of her.

Meanwhile, Shana keeps popping up in the most unusual places. And Spencer's investigation into who was on the other end of Ali's mysterious phone number leads her and Toby to Ravenswood - which is unlike any place they've ever seen.

Hosted by comedian Aisha Tyler, cast members Ryan Stiles, Wayne Brady and Colin Mochrie, along with guest comedian Heather Ann Campbell 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.

Acts compete at the Planet Hollywood Resort and Casino in Las Vegas.

Danny has no interest in a rubber-to-roof restoration on a '73 Chevy Blazer until he hears that it's a tribute to the owner's nephew. Later, a New Orleans-based haunted hotel owner wants a bike so creepy it will scare the ghosts off of Bourbon Street.

It is revealed to Hanna that Benny happened to be behind the wheel of Candace's car. David reveals how he participated in the set-up. Katheryn ends up having a bond with Hanna regarding their issues.

With only three weeks left in Opilio season, the fleet prepares to make the final push to wrap up their seasons. Captains battle weather, equipment and their own men in a sprint to the finish, but nothing comes easy.

Maura becomes the key suspect in a homicide case when Maura's date turns up dead - and Maura can't remember their evening together. As the shocking evidence against Maura piles up, Jane struggles between protecting her best friend and doing her job.

Annie must determine how to balance two new relationships in her life - a burgeoning romance with Auggie and a professional partnership with Henry Wilcox - while also searching within Colombia for a new person of interest: the Puma

When new evidence in Regina's murder mystery points to Connecticut, Danny, Jo and Lacey decide to hit the road, without telling their parents. The trip could well end in disaster: Jo and Lacey are at odds, with Danny struggling to play peacemaker, and Danny is blatantly violating his parole by crossing state lines. Meanwhile, Kyle is determined to track Jo down, and Karen and Tess bond over an impromptu pottery lesson.

Kevin and Roli make an unplanned stop to check out a mysteriously small vehicle. And later, Danny gets a call from Rob Zombie who wants to customize a truck for his upcoming tour... that kicks off in 7 days.

The inmates campaign along racial lines for positions on a prisoners council, but Piper tries to stay above the increasingly raucous competition.

Lauren met Derek on MySpace nearly 8 years ago. Since then she's relied on him for everything - Derek's funny and caring, and he even supported Lauren after she had a baby with a now former boyfriend. Lauren knows that Derek is the man of her dreams and she can't wait to take the next step with him. The only problem is, they've never met in real life or even video chatted. Every time she's tried to see Derek he's always had an excuse. Lauren strongly believes that Derek could be her future husband and she feels that he can be a good father to her three-year-old son.

Sketches in Chicago include Al Capone being done in by an unlikely adversary; Abraham Lincoln catching a break; and police warring with protesters during the Haymarket Riot of 1886.

The Season 3 opener finds the 16 competing tattoo artists in a prison, tasked with inking inmates. Among this season's competitors is Katherine "Tatu Baby" Flores, a Season 2 artist who was eliminated but voted back by viewers.

Blue tries to sabotage Keira's new relationship. Meanwhile, Malik's past comes back to haunt him, and Chardonnay struggles to deal with Jason's gridiron injury.

The merger complete, Jessica's new partnership with Darby is tested when he assigns Harvey a high-profile client, an oil baroness named Ava Hessington, who has a deeper past with Darby than originally thought. Mike works to reconcile with Harvey, while also trying to manage the fallout from his revelation to Rachel. Meanwhile, Louis convinces Darby to give him quartermaster responsibilities at the firm over his rival, Nigel, but the move backfires when Nigel is put in charge of something even more precious to Louis.

The doctors at Hope Zion Hospital are forced to deal with people from their past as Alex, Charlie, and Joel take on the daunting task of operating on a malpractice lawyer known for suing every doctor in his path. Meanwhile, Zach is tested when the last person he wants to treat comes into his E.R. and a Season 1 patient returns with some difficult insight for Charlie and Alex.

Pierce accepts an invitation to work on a case from a renowned environmental activist concerning a chain of abnormal neurological reactions in a group of young girls. However, upon examining the girls, Pierce discovers that a dark secret is at the root of their ailments. Meanwhile, Moretti questions Pierce's motives in working on a case without her.

Anthony explores satanism, David Koechner has it out for Ariel Castro, and we explore Craigslist.

Helen Mirren

Howie Mandel, Professor Brian Cox, Mikal Cronin

David Karp

Brian Williams, dock diving dogs, Pokey LaFarge

Zachary Levi, Danica Patrick, Talib Kweli featuring Nelly & Abby Dobson

Jon Hamm, Georgia King

Daniel Wilson offers his 'perfect hotdog'. The contestants facing elimination have to recreate the hotdog and David will join the judges to decide who will be eliminated.

A dream about Counsellor Lawrence has Nina questioning her relationship with Patrick, Billie embarks on a new career and heads for self-destruction, and the nurses help Eloise with her love life.

The finalists have one last chance to ttry and impress before this year's winner is announced by Lord Sugar.