It's Blue Peter's Red Nose Day spectacular and Barney takes on a jokeathon challenge.
The Lifebabble team talk about loneliness - a feeling that can happen to all of us.
The Lifebabble team talk about jealousy - a feeling everyone experiences.
The contestants must sing a One Republic single and impress a fashion industry expert.
Documentary following two air cadets as they fly an aeroplane for the first time.
The Lifebabble team talk about crushes and how they make you feel.
Andy learns about the brainy beasts!
The doctors reveal the amazing organs that keep you alive before you're born.
Sarah buys a onesie that turns her invisible and she uses it to plays tricks on Gav.
Even sleepy animals need a place to rest!
Barney attempts to come up with the world's funniest joke.
The doctors find out what happens when you eat with the help of a miniature Xand doll.
Knowles and McCork explore the digestive system of Colin the floor manager.
The Lifebabble team talk about being a fan - how it's okay to look up to someone.
JB, Storm and Rory learn about parsnips, chickens, polytunnels and mussels.
Knowles and McCork ask 'Why do we make saliva while we eat?'.
The Lifebabble team talk about relationships, from friends to family members.
McCork and Ms Hucklebuck are in the sky as they ask 'How does a parachute work?'.
Professor McCork and Doctor Knowles investigate how many atoms there are in our bodies.
Professor McCork and Doctor Knowles ask 'How long would it take to walk the Earth?'.
The Lifebabble team talk about material things.
Documentary following 12-year-old Adel who moved to the UK as a refugee three years ago.
The Lifebabble team talk about how it feels to live with an illness or condition.
The eight young singers learn a Ne-Yo hit song.
Andy meets the world's fastest animals!
Ricky makes a secret book and selfie collage inspired by David Hockney.
Join Andy and the amazing Aussie odd-balls!
The Lifebabble team talk about sleep, and how important getting enough of it is.
Barney takes on the World Pasty Championships and enters a Blue Peter pasty.
In this time zone special, Knowles and McCork ask 'Why does the Earth spin on its axis?'.
JB, Storm and Rory learn about mistletoe, tractors, hedgehogs and soup.
The Lifebabble team talk about resilience - what it means and how it can help.
Dr Knowles and Professor McCork ask the question 'Are we all related?'.
The Lifebabble team talk about body image and the pressure to look a certain way.
McCork and Hucklebuck attempt to break the record for the world's biggest ice cream cone.
The singers need all the help they can get as they face their most challenging song yet.