Well if there's 3 rapid fire exchanges (trading Queens & Rooks for example) lasting 10 seconds total, followed by a 20 min move, then the broadcast would have t

Well if there's 3 rapid fire exchanges (trading Queens & Rooks for example) lasting 10 seconds total, followed by a 20 min move, then the broadcast would have to freeze frame on the 1st move in the rapid fire sequence, so as to stay 3 moves behind, with the last 2 "hidden" moves evident to all that the pieces will be traded.