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Why would a British show be in the same universe/timeline as an American show(that's that adaption of a Japanese show)?
The Docotor referenced Zordon by name in a Big Finish audio play once
That's nothing, see if you can follow.
The sector of space Gallifrey is in was referenced in Star-Trek The Next Generation, along with I believe a planet or two from the Doctor Who mythos.
Furthermore, in the Marvel UK Transformers comic a member of the Decepticon Triumvirate has a Dalek shell as alt-mode. The G1 comics are in the same continuity as the TV show, making Doctor Who (and by extension Transformers and Star-Trek) in the same universe as Transformers, Beast Wars, and the Japanese continuity shows (Headmaster, Masterforce, Victory). If the G1 tv show is canon that means we get an appearance by 'old snake' who is Cobra Commander in the future, making it in continuity with GI Joe.
GI Joe is also in the same continuity as M.A.S.K. .
Power Rangers is in the same continuity as Masked Rider, making it by extand part of the multiverse that Decade can travel. Transformer has its own multiverse that also include the Gobots and include was to travel between those world (and the Original 13 Transformers, Primus and Unicron are all Dimensionnally Trascendant being who exist in all of those continuity at the same time.).
I'm pretty sure you can find more. I think Hitchhiker's guide to the Galaxy gets a few shout outs in Star Trek as well.
