* {{Defictionalization}}:
** Since 2000, a full-size replica of Theodore named ''Theodore Too'' has been giving harbour tours in real-life Halifax.
** In July 2020, it was announced they plan to sell ''Theodore Too''.
* HeAlsoDid: It's no coincidence that the show's producer, Robert Cardona, previously worked on both ''WesternAnimation/ThomasAndFriends'' and ''WesternAnimation/{{TUGS}}'', shows that also use {{Sentient Vehicle}}s as its premise.
* KeepCirculatingTheTapes:
** In the United States a number of VHS releases were put out, containing at least three episodes each, but they all went out of print when PBS lost the broadcast rights to the series and right before the ''Theodore'' intellectual property was bought by Classic Media. No DVD releases have ever been released, and there have been multiple fan campaigns to get the series out, all to no avail.
** In Canada, VHS cassettes had only two episodes per tape, and they're hard to track down.
** The show was put up on Creator/{{Netflix}} Belgium in early 2015, but it has since been delisted.
* TheMerch: ERTL and BRIO produced toys of Theodore and his friends, as well as playsets of the Big Harbor. There was also a series of children's books published by Random House.