Catch up TV
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 her BFF.
Source: CBeebies
Most recent episodes of Big Lizard
Big Lizard
Series 1: 4. The Day We Met Ammon
Dad drops an essential gizmo in a hard-to-reach place. Big Lizard takes them on an underwater adventure to meet Ammon, the tentacled solution to their problem!
15-03-2026
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.
15-03-2026
CBeebies
Big Lizard
Series 1: 3. How We Met Dunk
Searching for a vital part of the ship that was lost during their crash-landing, Cosima and Big Lizard find Dunk stuck on a beach. They use science to save the day and make a ne ...
14-03-2026
CBeebies
Big Lizard
Series 1: 45. Prank Day!
Dad and Cosima both think they're the best at pranking. Their prank war quickly spirals out of control, until Big Lizard finally reveals Proxima's real pranking champion!
14-03-2026
CBeebies
Big Lizard
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!
14-03-2026
CBeebies
Big Lizard
Series 1: 43. A Place To Sleep
Whilst Dad searches for a faulty wire, Cosima and Big Lizard play tag in the ship and accidentally break Big Lizard's bath bed! Where will he sleep now? And where's that pesky w ...
11-03-2026
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?
10-03-2026
CBeebies
Big Lizard
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!
09-03-2026
CBeebies
Big Lizard
Series 1: 2. The Trouble With Trilobites
When a pack of pesky, migrating trilobites overrun the ship, Big Lizard has to use a hidden talent to lure them away. But one little trilobite, Rex, decides to stay.
08-03-2026
CBeebies
Big Lizard
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!
08-03-2026
CBeebies
Most popular episodes of Big Lizard
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?
01-03-2026
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: 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: 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: 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: 15. The Triple Eclipse
A triple solar eclipse is about to happen! Cosima and Big Lizard race down the volcano and hitch a lift on a dragonfly so that they can get vital equipment to Dad in the nick of ...
30-01-2026
CBeebies
Big Lizard
Series 1: 31. A Medical Emergency
Whilst playing doctors, Cosima discovers an animal with no heartbeat! Can Cosima and Big Lizard save the poor creature with Dad's medical kit?
23-02-2026
CBeebies
Big Lizard
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!
08-03-2026
CBeebies
Big Lizard
Series 1: 45. Prank Day!
Dad and Cosima both think they're the best at pranking. Their prank war quickly spirals out of control, until Big Lizard finally reveals Proxima's real pranking champion!
14-03-2026
CBeebies
Big Lizard
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?
28-02-2026
CBeebies