Catch up TV
Series 1: 47. The Day We Lost Rex
Rex is missing, but Dad, Cosima and Big Lizard need him to save them from a giant slug!
Source: CBeebies
Most recent episodes of Big Lizard
Big Lizard
Series 1: 49. A Big Day Out For D.o.r.i.s.
Dad gets trapped in the shower when D.O.R.I.S. decides to visit the sea. Can Big Lizard and Cosima stop her before she does herself permanent damage?
21-02-2026
CBeebies
Big Lizard
Series 1: 40. Big Lizard's Big Itch
Big Lizard isn't happy in his skin! Cosima tries everything to stop him scratching until she realises that's exactly what he needs to do. He's shedding his skin!
21-02-2026
CBeebies
Big Lizard
Series 1: 30. Dad's Drone
Big Lizard wants to have a go with Dad's new drone, but first he has to prove that he can go a whole day without breaking something precious. Good luck, Big Lizard!
20-02-2026
CBeebies
Big Lizard
Series 1: 29. The Shiny Fruit
Cosima and Big Lizard find some fascinatingly slippery fruit, but bringing it safely back to the ship is more challenging than they imagined!
19-02-2026
CBeebies
Big Lizard
Series 1: 28. The Night Of The Slug
Big Lizard and Cosima undertake an exciting night-time mission rehoming a friendly slug that's taken residence in Cosima's bedroom!
18-02-2026
CBeebies
Big Lizard
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.
17-02-2026
CBeebies
Big Lizard
Series 1: 26. Happy Proximas!
When it unexpectedly snows, Cosima decides it must be Christmas! Rex disrupts her festive preparations, but it doesn't stop the family having a perfect 'Proximas'.
16-02-2026
CBeebies
Big 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.
15-02-2026
CBeebies
Big Lizard
Series 1: 39. The Vegetable Robbery!
When all the vegetables from their garden are stolen, detectives Cosima and Big Lizard investigate all over the neighbourhood - only to return to the scene of the crime!
15-02-2026
CBeebies
Big Lizard
Series 1: 47. The Day We Lost Rex
Rex is missing, but Dad, Cosima and Big Lizard need him to save them from a giant slug!
14-02-2026
CBeebies
Most popular episodes of Big Lizard
Big Lizard
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.
10-02-2026
CBeebies
Big Lizard
Series 1: 14. How To Record Sound
Big Lizard accidentally deletes some of Dad's 'boring' Proximan audio recordings. Through a dramatic sound adventure, Cosima realises the recordings are not boring - they're cos ...
29-01-2026
CBeebies
Big Lizard
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.
17-02-2026
CBeebies
Big Lizard
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?
05-11-2025
CBeebies
Big Lizard
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.
28-01-2026
CBeebies
Big Lizard
Series 1: 29. The Shiny Fruit
Cosima and Big Lizard find some fascinatingly slippery fruit, but bringing it safely back to the ship is more challenging than they imagined!
19-02-2026
CBeebies
Big Lizard
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 ...
09-02-2026
CBeebies
Big Lizard
Series 1: 42. Personal Space
When Cosima finally finds a quiet place to read her book, she realises peace and quiet aren't all they're made out to be. Where's Big Lizard when she needs him?
25-01-2026
CBeebies
Big Lizard
Series 1: 18. Dad's Birthday
When Cosima wrongly accuses Big Lizard of eating Dad's birthday cake, he vanishes. Has he run away, or is he planning a special surprise to save the day?
04-02-2026
CBeebies
Big Lizard
Series 1: 46. The Camera
Cosima takes over Dad's mission to film a unique underwater plant. But his special camera proves harder to operate than she'd thought, and Big Lizard keeps getting distracted.
08-02-2026
CBeebies