Justice League vs. The Fatal Five and Batman & Harley Quinn have both been deemed canon by Bruce Timm, and by it's references to the previous serieses.
Take that up with @Tupka217
We only cover the TV series, not just some of the comics.
Then why are the other movies included such as Batman Beyond Return of The Joker, Mystery Of The Batwoman, etc?
Okay, the TV series and the movies made during the run.
What do you think?