Whose Line is it Anyway? Watch Now
I don't know if this is an issue with Trakt or Just Watch.
Whose Line is it Anyway? (USA 1998) Watch Now under United Kingdom has Chanel 4, Amazon Prime and Amazon. All these services link to the UK 1988 version of the show on the respective services.
I don't know if this is the same for other regions
WLIIA (USA 1998) - https://trakt.tv/shows/whose-line-is-it-anyway-1998
WLIIA (UK 1988) - https://trakt.tv/shows/whose-line-is-it-anyway
This would be an issue with JustWatch sending us the incorrect links.