(27 Feb 2014, 7:55 pm)dans_bus_photos wrote There should be atleast 1 gas bus out, as im sure the evening PVR of 4 is covered by 3 vehicles off the 3s and 1 off the 20s

1803 #3 arrival from Hylton Castle performs the 1809 #20 departure from Sunderland.
1823 #3 arrival from Hylton Castle performs the 1826 #20 departure from Sunderland.
1852 #3 arrival from Farringdon performs the 1856 #20 departure from Sunderland.
1919 #3 arrival from Farringdon performs the 1926 #20 departure from Sunderland.

I'm not sure what the 1809 #20 departure does, unless it goes back to the depot out of service.

The 1956 #20 departure works off a 3 which performs a full 3 (1807 departure from Farringdon, 1845 arrival at Hylton Castle - 1855 departure, 1931 arrival at Farringdon).

(27 Feb 2014, 7:55 pm)tyresmoke wrote Won't be a set date but any service changes will affect drivers duties and therefore require changes to the rotas. Sunderland won't have any differences in school holidays though, unlike Stockton or Walkergate. It remains to be seen when they'll next change them, it'll be an internal thing so I assume we'll never find out, apart from when some interworkings change.

I've always thought Sunderland's services were reviewed annually around this time of year ready for service changes (if necessary) in April.