The third season was first broadcast in 1994.
Episodes
- Diesel Tries To Fly (29 August 1994)
- Dinosaur Tracks (30 August 1994)
- The Pink Thread (31 August 1994)
- Melissa's Dinosaur (1 September 1994)
- Diesel Who (2 September 1994)
- The Homecoming (5 September 1994)
- The Three Little Pigs (6 September 1994)
- Disappearing Act (7 September 1994)
- Growing Up (8 September 1994)
- The Flood (9 September 1994)
- The Toy Orchestra (12 September 1994)
- The Money Box (13 September 1994)
- The Television Set (14 September 1994)
- The Toy Hospital (15 September 1994)
- A Trip to the Moon (16 September 1994)
- The Loose Tooth (19 September 1994)
- The Fancy Dress (20 September 1994)
- The Art Exhibition (21 September 1994)
- Finders Keepers (22 September 1994)
- Leaving Home (23 September 1994)
- Sock Soup (26 September 1994)
- The Train Conductor (27 September 1994)
- The Fun Run (28 September 1994)
- The Crying Baby (29 September 1994)
- Bringing Up Baby (30 September 1994)
- Going Away (3 October 1994)
Trivia
- This season marks the introduction of Victoria the Purple and Orange Dinosaur.
- This was the first season to feature Jonathon Hendry as the costume performer for Johnson, Dra McKay as the costume performer for McDuff, Matthew Chamberlain as the costume performer for Diesel and Sarah Boddy as both the voice actor and costume performer for Squeaky.
- This is the only season where Elizabeth Easther was the costume performer for Victoria, Deborah Kennedy voiced Victoria in both this season and the next season.
- The Crying Baby, Bringing Up Baby and Going Away are the only episodes that were never released on VHS