(29 Sep 2014, 6:09 pm)tyresmoke wrote How about the 3 and 19 that interwork in Darlington?
Also the X59s which work on/off 14s

Oh yeah of course, and the75/76 and the 13a/b. 
The X1 in the morning (arrives Darlo town centre around 8:25) turns into the 14 or 19.

How do services interwork in Durham does anyone know?