683 is currently the only service that serves Hexham Bus Station more than once in a single trip, but prevous varients would have done the same BUT it only applies to the new bus station as when the old bus station was open, eastbound town services stopped on Priestpopple which was outside of the bus station.

Think Alnwick town service used to do the same at Alnwick Bus Station too.

When the Ryton Hub bus station / stand was open, some of the R services made repeated visits.

When Seaham Harbour bus station was still around, I'm sure a local service did a repeat visit.

I would also look at Winlaton Bus Station, possible services do or did repeat visits.

As already mentioned
51/52 at Gateshead.
168 at Hetton Le Hole.
683 at Hexham Bus Station.
700 at Sunderland Interchange.

Did 45/46 actually terminated at Delves Lane or was it Newcastle - Consett - Delves Lane - Consett, then the same on the return. Would probably have to look at the timetable in regards to that one.