(28 Jun 2021, 10:40 am)ASX_Terranova wrote Why does this service depart from haymarket when the 74 & SNE's X77/78/79 use eldon square and all of those go to similar areas.

I don't think you need to draw parallels between the two. One is a funded express service, aimed at getting visitors into Belsay Hall, Castles and Gardens, with a very limited weekend service. The others serve as a means of getting people from their communities into a City (or Town) centre for work, retail or leisure. 

For that reason, it's probably sensible to keep them apart.