[Neil Jones]

Fremantle own the rights to both versions of the show.

Which incidentally IIRC is why Epic Gameshow used the formats it did, because that's the ones they owned, which is why they didn't do 3-2-1 for example,.

Although that argument falls down when it comes to Bullseye, though I suspect it the seeds were sown for that for the Gameshow Marathon years earlier.