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Bionicle can probably stay as-is because movies and video games for it exist. Not sure about the others.
If a tree falls in the forest and nobody remembers it, who else will you have ice cream with?
It doesn't just need three media types. -it needs three pages on this site to use the Franchise namespace.
If there are three pages, have at it.
Coming back to where you started is not the same as never leaving. -Terry Pratchett
None of them have three pages under another namespace; all the content is on the Franchise pages. That's why I talked about misuse.
If they are toy lines, the go in the toys namespace. If they have associated franchises, the toy line is linked from the franchise disambig page.
Several Toy lines from the LEGO franchise use themselves the Franchise/ namespace, which I think is a misuse since they don't branch to various other work pages, but concentrate all the tropes on their pages.
They are BIONICLE, Hero Factory, Ninjago and Legends Of Chima.
Under which namespaces should they go? The last too are mostly about the animated series, so they could fit under WesternAnimation/. Most could fit in Toys/ anyway.