(Granada TV situation comedy, 1984)

Alan Bleasdale-scripted and following the misadventures of a Liverpool teenager.

Episode 1:
Scully and his mate run down the street to catch Merseyside PTE 0047 (CHF347X), a 1982 Dennis Dominator/Alexander:

Episode 2:
A brief view of Merseyside 1981 (DEM781Y), a 1982 Leyland Atlantean/Alexander, in an all-over advertising livery for Walker's Ales. (Thanks Jon Price for the clue to this id).

Episode 6:
This appears to be 0047 again:

This definitely is, as Scully (Andrew Schofield) and girlfriend Marie (Gilly Coman) board and ride upstairs: