This is a list of episodes of the Canadian children's television series Theodore Tugboat. There are one hundred-thirty episodes in the series. They were premiered in Canada, and the US on PBS, and Discovery Kids in 65 pairs. Note: episodes may not appear in perfect chronological order and not all episodes have yet been identified.
The first season cotained 20 episodes.
The second season also cotained 20 episodes.
The third season cotained 25 episodes.
Season four included 30 episodes.
The fifth and final season contained 35 episodes.