Only incidentally about changes to the layout at Ely, but recently there was an item about it on BBC Look East which showed some (presumably stock) footage of the junctions. The first sequence made me do a double take, pause it on my Hard Disc Recorder and watch it frame by frame, and it clearly showed a 2-car DMU (no pan, but a well for one) arriving from the Norwich or Kings Lynn lines, with a rounded front and windows with top ventilators so non-air conditioned. As far as I could see this could only have been a Class 165 Networker. It looked as though the wires were already up so presumably a Norwich service continuing to Peterborough after reversing at Ely but livery could have been pre-privatisation. Some sort of emergency rolling stock loan?