Over the years, the show was blessed with many guest star appearances. Hollywood favorites like Bruce Willis, Lindsey Lohan, and Brooke Shields had a lot of fun working on set with the vibrant, enthusiastic cast.

On set, the decor had to be just right in reflecting the decade of the 1970s. Behind the scenes, detail was also important when props were in use. We meet the man who coordinated many of the stunts and gags, and then catch up with some of the big-name guest stars who graced the show over the years.

When the unexpected happened, it was sometimes best to stay in character and try to get a bigger laugh. In particular, Ashton Kutcher, who played Kelso on the show, was willing to endure some painful knocks if it made the audience happy.

Things on set didn’t always go as planned. Sometimes the young actors got the giggles, and sometimes they even got hurt, but each found their own way of dealing with the unexpected. Luckily, the director of the show was extremely patient with them.

The whole cast got to break out of their routine and enjoy roles in the many fantasy sequences that were a feature of the show. Often based on iconic stage and screen performances, some actors were able to live out their personal acting fantasies and play parts they had always dreamed of.

The basement film set and its contents have taken a battering over the years of filming. Now that the show is coming to an end, the actors are dividing up the props, keen to take a memento from the studio that has become a home away from home.

The cast recall their favorite moments of a show that didn’t mind pushing the boundaries. A cartoon episode was made, and the “three-sixty” scenes were a huge hit — to the extent that they often weren't even related to the storyline.

Some memorable scenes came when That '70s Show pioneered new camera techniques. They were the first show using “three sixty degree” scenes, bringing each character into sharper focus, often with hilarious results.

The cast hadn’t met before filming the show, but there was a good chemistry between them right from the start. When they got together and were having a good time, the viewers knew it, and very soon were also having a good time watching.

Eric finds that the road to happiness is not without a few bumps as his and Donna's teenage romance becomes an adult relationship.

Looking back at the pilot episode from all those years ago, the actors explain why the show made audiences of different ages laugh, and cringe at their own acting skills.

When hit US sitcom That '70s Show finally ended its long and successful run, the actors came together to reminisce and relive the good times and best moments. How did it all get started? Did any of them ever dream that the show would be so popular?

Chris Isaak tells the story behind shooting the iconic 1989 music video for "Wicked Game," which featured supermodel Helena Christensen. The on-screen chemistry between the two of them has made many people wonder if they were romantically involved in real life, but Isaak says it was the combination of Christensen's excellent acting and the skill of photographer/director Herb Ritts that made the video come alive.

Aloe Blacc talks about his musical inspirations, philanthropic ambitions and much more in his EPK.

A British couple talks about a music festival they have just attended in Lucca, Italy. Not only are they enthusiastic about the music, they are also impressed with the venues and their accessibility.

The musical takes shape as Coldplay and the Game of Thrones cast continue to rehearse the songs. But just when they are ready to do their premier performance, there's a bit of a snag.

Coldplay and the cast of Game of Thrones join forces for a sketch aired on the NBC TV charity campaign Red Nose Day to raise money to end child poverty.

Luana and Austin have been traveling around Latin America. They take a break and share their interesting story with us.

Nate, a five-year old geography whiz is back on The Ellen Show. He has a long list of foods that he enjoys eating, plus some he doesn't like.

Nate is a preschooler whose love for geography, countries, flags, and more has really put him on the map!

Ellen and Channing talk a bit about Magic Mike, a show in Vegas, and go on to talk about the animated movie Smallfoot, where he does the voice of Migo.

Channing Tatum makes one incredible entrance to Ellen's show and leaves the audience breathless. They talk about Channing's standing in for Jimmy Kimmel on his show.

Camila Cabello talks about walking into Taylor Swift's Halloween party as a fat grandma in a room full of sexy costumed models and her grandma's obsession with her single "Havana."

Meghan and Harry talk about meeting each other's families, and the design of the engagement ring, which includes diamonds that belonged to Princess Diana.