".....somebody get on the phone to ILM and find out how they manage it....."
This might look like a particular lame attempt to suggest the babes are touching each other, but you have to make allowances for the fact that Priya is actually on a different set entirely (probably the Morecambe and Wise stage) and has been "green-screened" in beside Lori, and it takes a bit of work for the two babes to synchronise their movements : they need to move Priya's monitor closer towards her so she doesn't have to peer out so much as she backs towards an imaginary Lori behind her.
Once they get the hang of it, it's going to be a fool-proof system against Ofcom complainants : "But M'lud, the two ladies in question were not even in the same set, and here's the raw footage to prove it"
^ it's funny, I always thought he was singing "Sordid details fall away" and also "Just pictures of Jap girls and synthesists" ; meaning people paying synthesizers which I assumed was some barbed comment on the state of the early 80s UK charts, but all the sites seem to render it as "in synthesis" which I find slightly disappointing, for some unknown reason.