The keyboards in the video are of course just being used as props as they mime the song.
Both keyboard players in the video have Fender Rhodes electric pianos on the bottom. The guy on the right has what I think is a Korg Poly-ensemble on top of the Rhodes and the other looks like the PPG already mentioned. (none of which, I should add, were played on the album
I don't think he started using the Polymoog until 'The Pleasure Principal'. Most of Replicas is Minimoog.