(04 Apr 2015, 4:09 pm)Malarkey wrote AD122 is a PVR of 2, using MPDs 557 and 561.
Have a look at the Timetable Tom
http://www.simplygo.com/all-services/ad122
I know, but they don't meet at Walltown.
The 0910 from Hexham operates to Haltwhistle first, ommiting Walltown (arriving 1006 in Haltwhistle), and then goes to Walltown (arrving 1020), continuing to Hexham (arriving 1104).