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.

Some of the schools in Georgian England were very rough places! In this video, a prospective pupil and his parents get caught up in a full-scale schoolboy rebellion while on a tour with the headmaster. They even encounter flying masonry and gunfire!

Regarding this song, Robert Grace says "'Fake Fine' is special to me as it’s a song about battling anxiety and depression especially in these uncertain times, but I wanted to provide a lighthearted and comedic spin on it. A MASSIVE THANK YOU to everyone for making this happen ❤️"

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.

The more you think about it, the more complex time travel seems! This video explains a key paradox that is one of the main reasons for this.

The Valentine’s Day live edition of "Fun with Flags" continues, as does Sheldon’s irritation with the show’s callers. They just don’t want to talk about flags, and, more importantly, he’s not the only one speaking! He goes into a big sulk, but Amy gets him to open up and we suddenly glimpse a different, almost romantic side of Sheldon.

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.

American singer songwriter, rapper, producer and comedian Oliver Tree goes through his fridge and introduces us to some of the unhealthiest, most sugary food available, all forming part of his surprising new weight loss diet.

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.

Mike Myers concludes his comedic yet personal and moving tribute to actor Sean Connery on the night he receives a lifetime achievement award from the American Film Institute.

Ross wants to be happier in the coming year, and makes a resolution to do one new thing every day. Joey wants to learn guitar, while Phoebe and Chandler make slightly more challenging resolutions...

Christmas falls during Australia's summer, when it's quite hot in certain areas of the country. Therefore, it makes sense of Santa Claus to take a jet ski rather than a sleigh, especially in this event to raise money for underprivileged children.

From the soundtrack of Disney’s enormously successful movie Frozen, the song “Do You Want to Build a Snowman?” caught the imagination of the world, as a lonely Anna desperately implores Elsa to spend time with her.

After Victoria became Queen, English children’s names became really weird. A girl called Never… a boy called Toilet… For one poor teacher, taking the class register is almost impossible!