Derren Brown predicts and reveals the Lottery Numbers LIVE on TV

at 5:40 to 5:42 is when the overlay of recorded motionless balls are removed

You can see the line on the wall and floor hiding the split screen divide. the left side is frozen, but it looks like it isnt because the camera wobbles about (too unprofessionally not to be a gimmick).
I suspect a third camera is filming a large screen with the split image from the two studio cams projected onto it.

u can see at two points of the balls being called out, once they are all picked, if you look at the left, u see the screen freeze for a split second, when hes finished writing them down, keep looking at the left side and it freezes again.

Actually, this does rather look like a motion controlled camera! Maybe split-screen is in play?

the camera "shaking" is ia digital effect, it is split screen

whilst this half is frozen a stagehand swaps the balls on the stand with the correct ones, we don't see this because this half of the screen is frozen!
the left half is then unfrozen, and the whole shot is live again, for derren to reveal the balls.
as for the camera wobbling, this is to TRY and detur accusations of split screen, however, the camera's shot is wider than what we are shown