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Series 1: 13. When Dad Sleepwalked



Cosima and Big Lizard investigate the cause of Dad's mysterious sleepwalking in an adventure that takes them around Proxima and right back home again.

Source: CBeebies

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Big Lizard - Series 1: 13. When Dad Sleepwalked

Series 1: 13. When Dad Sleepwalked

Cosima and Big Lizard investigate the cause of Dad's mysterious sleepwalking in an adventure that takes them around Proxima and right back home again.

25-04-2025

CBeebies

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Big Lizard

Big Lizard - Series 1: 23. Astronaut Health Check

Series 1: 23. Astronaut Health Check

Dad needs some training to pass his astronaut fitness test. Cosima and Big Lizard put him through his paces! When Rex gets into trouble, Dad’s hard work finally pays off.

25-04-2025

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Big Lizard

Big Lizard - Series 1: 12. All About Home

Series 1: 12. All About Home

Cosima is so excited to tell Big Lizard about her life on earth that she doesn't realise he has something exciting to say to her.

24-04-2025

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CBeebies

Big Lizard

Big Lizard - Series 1: 22. The Sea Meteorite!

Series 1: 22. The Sea Meteorite!

When a meteorite splashes into the sea, Dad and Cosima cause problems by claiming it in the name of science, against the wishes of the sea creatures.

24-04-2025

CBeebies

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Big Lizard

Big Lizard - Series 1: 11. Happy Campers

Series 1: 11. Happy Campers

Cosima and Big Lizard have a camping sleepover with a friendly little crab. In the morning, their new friend is missing, but why?

23-04-2025

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Big Lizard

Big Lizard - Series 1: 21. The Problem Plant

Series 1: 21. The Problem Plant

Big Lizard frustrates Dad by stealing a strange plant from the ship. A disaster is averted when Big Lizard persuades Dad that there's more to this plant than meets the eye - and ...

23-04-2025

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Big Lizard

Big Lizard - Series 1: 20. Magnetite

Series 1: 20. Magnetite

A strange find far away from the ship breaks D.O.R.I.S.’s satnav. Luckily, Big Lizard’s on hand to teach Cosima how to find her way around without technology.

22-04-2025

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Big Lizard

Big Lizard - Series 1: 9. How To Work Together

Series 1: 9. How To Work Together

Cosima, Big Lizard and Ammon are squabbling over Dad's precious explorer notebook when disaster strikes. Only by working together can they save it from being lost forever!

21-04-2025

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CBeebies

Big Lizard

Big Lizard - Series 1: 19. Best Friends Forever

Series 1: 19. Best Friends Forever

Big Lizard is jealous of the vacuum cleaner and hides it from Dad and Cosima. Ammon decides it's her new best friend, whilst Cosima reassures Big Lizard that he will always be h ...

21-04-2025

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CBeebies

Big Lizard

Big Lizard - Series 1: 7. How To Hoverboard

Series 1: 7. How To Hoverboard

Cosima and Big Lizard's solar-powered hoverboards run out of battery at nightfall. Can glowbugs be the answer?

20-04-2025

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Most popular episodes of Big Lizard

Big Lizard

Big Lizard - Series 1: 19. Best Friends Forever

Series 1: 19. Best Friends Forever

Big Lizard is jealous of the vacuum cleaner and hides it from Dad and Cosima. Ammon decides it's her new best friend, whilst Cosima reassures Big Lizard that he will always be h ...

21-04-2025

CBeebies

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CBeebies

Big Lizard

Big Lizard - Series 1: 32. All Out Of Marmalade

Series 1: 32. All Out Of Marmalade

When Dad runs out of marmalade, Big Lizard shows Cosima a plant that's growing Proximan oranges. The leaves turn out to be giant bugs, who aren't happy about sharing their fruit!

19-04-2025

CBeebies

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CBeebies

Big Lizard

Big Lizard - Series 1: 48. How To Speak Lizard

Series 1: 48. How To Speak Lizard

When Dad's Lizard Translator malfunctions, Cosima is carried away by a giant beetle! Cosima and Big Lizard realise they don't need to speak the same language to be best friends.

02-04-2025

CBeebies

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CBeebies

Big Lizard

Big Lizard - Series 1: 12. All About Home

Series 1: 12. All About Home

Cosima is so excited to tell Big Lizard about her life on earth that she doesn't realise he has something exciting to say to her.

24-04-2025

CBeebies

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CBeebies

Big Lizard

Big Lizard - Series 1: 52. The Day We Left

Series 1: 52. The Day We Left

When D.O.R.I.S. reveals a large meteor is about to land on the spaceship, it's finally time to leave. But should Big Lizard leave too? What about all those who need him on Proxima?

08-04-2025

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CBeebies

Big Lizard

Big Lizard - Series 1: 27. The Day Ammon Overcame Her Fear

Series 1: 27. The Day Ammon Overcame Her Fear

Ammon gets spooked by a tiny insect, but overcomes her fear to rescue Cosima and Big Lizard from the rapids.

30-03-2025

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CBeebies

Big Lizard

Big Lizard - Series 1: 44. The Hoverboard Race

Series 1: 44. The Hoverboard Race

During a hoverboard race, Dad's new super-powered hoverboard malfunctions, so Cosima and Big Lizard throw the race to rescue him!

27-03-2025

CBeebies

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CBeebies

Big Lizard

Big Lizard - Series 1: 41. When Dad Got The Hiccups

Series 1: 41. When Dad Got The Hiccups

Dad gets a severe case of Proximan hiccups. Big Lizard and Cosima do their best to help, but their attempt to scare Dad goes wrong when a real 'monster' turns up!

24-03-2025

CBeebies

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CBeebies

Big Lizard

Big Lizard - Series 1: 9. How To Work Together

Series 1: 9. How To Work Together

Cosima, Big Lizard and Ammon are squabbling over Dad's precious explorer notebook when disaster strikes. Only by working together can they save it from being lost forever!

21-04-2025

CBeebies

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CBeebies

Big Lizard

Big Lizard - Series 1: 25. Cosima In Charge

Series 1: 25. Cosima In Charge

Dad has left Cosima in charge for the day. It seems like an excellent opportunity to have a massive party! What could possibly go wrong?

29-03-2025

CBeebies

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CBeebies

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