Things you didn't know about your favourite kids' TV shows
You have probably never heard of Jocelyn Stevenson but she has worked on some of the biggest children's shows on TV.
Today she will receive a special honour at the 2015 Bafta Children's Awards for her 30 years in the industry.
Her time on programmes like Sesame Street and Bob the Builder have produced a few surprises.
She shares some of the secrets from the best loved shows with Newsbeat.
Sesame Street - what happens to the puppets when the cameras are off
At night, the Sesame Street set is a very different place according to Jocelyn. All the puppets are put away in a big wooden cupboard.
"You can open up a cupboard and there can be all your favourite characters hanging lifelessly inside. They hang on these wooden poles. I don't think puppeteers or the programme makers like you to see them."
In terms of who was the most high maintenance - she says it was the larger characters like Big Bird who needed the most attention on set.
"The bigger puppets that have somebody inside of them, a whole body performer, they take a lot of work... especially if they are hairy because they do need the brushing.
"You know you're just about to have a take and suddenly somebody from the workshop runs in because they've noticed that a bit of hair on the shoulder wasn't brushed properly or a zip is showing. It's a lot of work."
Fraggle Rock - a show to stop war
When coming up with the idea for Fraggle Rock the programmer creator Jim Henson apparently wanted to make a show that would help stop war.
Jocelyn explains: "That's where the idea of three species of characters - the Gorgs, the Doozers and the Fraggles - came from.
"They all lived together in this world but they didn't know how they were interrelated but the audience could see that they were.
"It was actually a sort of powerful statement but we never talked about any of that in the show. The show was just goofy.
Different versions of Fraggle Rock went on to be made in countries across the world, including the UK.
Jocelyn thinks it did have an impact: "We didn't stop war did we? But you never know how much more there would have been without Fraggle Rock."
Pingu - why his dad ironed all the time
It has become the stuff of legend - endlessly discussed on forums - why did Pingu's dad iron all the time when they didn't wear any clothes?
The only reason Jocelyn could give for this was "because it's funny", an animator's joke apparently.
She says the animators were allowed to come up with the storylines themselves.
And when it came to the language spoken by Pingu and his friends - Jocelyn explains it was, of course, "complete gobbledegook".
The programme producers would write a script for the character then professional actors would come in and turn it in to the strange noises you heard on the show.
Hoobs - a show about questions
Iver, Groove, Tula, Roma and Hubba Hubba were names that didn't apparently mean much according to Jocelyn.
She thinks she may have been responsible for naming Hubba Hubba but says the show was all about getting children to ask questions.
"Different characters that would have different ways of discovering things. You think of a character. That's only the very beginning. They evolve."