(11 May 2013, 7:45 pm)Andreos1 wrote Branded vehicles working other routes has happened as long as GNE introduced branded vehicles.
For example, the 34 used to have Washington Street Shuttle vehicles from the M3 on an evening and Sunday for a long time, as the arrival/departure times coincided at Chester. Now it appears the Waggonway works the 34 and the Lambton Worm vehicles are kept indoors.
M3/34 used to interwork as far as I know. I'm going back a couple of years there though.