Season 1 (2000)[]
- Great Escape (April 8, 2000)
- Mysteries (April 9, 2000)
- Lionel Lion in Treasure Island (April 15, 2000)
- The Underwater Mystery (April 16, 2000)
- The Lost Lion (April 22, 2000)
- Drumming Session (April 23, 2000)
- Rescue (April 29, 2000)
- The World in the Mystery (April 30, 2000)
- Longship (May 6, 2000)
- The Pirate Lion (May 7, 2000)
- Revenge of the Lion (May 13, 2000)
- The Lions in Space (May 14, 2000)
- Theo and Cleo Lion of the Arctic (May 20, 2000)
- Between the Lions in Underwater Mystery (May 21, 2000)
- The Lions Together (May 27, 2000)
- The Lions in Underwater (May 28, 2000)
- Lost Treasure (June 3, 2000)
- Clams (June 4, 2000)
- Island (June 10, 2000)
- The Lost Treasure Mystery (June 11, 2000)
- Treasure Island (June 17, 2000)
- The Under Water Mystery (June 18, 2000)
- Rescue of the Red-Eyed Tree Frogs (June 24, 2000)
- The Three Little Pigs (June 25, 2000)
- Clams for Everyone (July 1, 2000)
- Totally Worth It (July 2, 2000)
- The Underwater Lost Treasure (July 8, 2000)
- The Clams (July 9, 2000)
- Underwater (July 15, 2000)
- The Treasure (July 16, 2000)
- Clams for Treasure Island (July 22, 2000)
- Clams' Treasure (July 23, 2000)
- Jack and the Beanstalk (July 29, 2000)
- Sam, Ham, Pam and Jam (July 30, 2000)
- Best Wishes: A Between the Lions Responsibility, Part 1 (August 5, 2000)
- Best Wishes: A Between the Lions Responsibility, Part 2 (August 5, 2000)
- Best Wishes: A Between the Lions Responsibility, Part 3 (August 6, 2000)
- Best Wishes: A Between the Lions Responsibility, Part 4 (August 6, 2000)