Nice outside and inside footage of JC5313, a 1938 Waveney-bodied Guy Wolf new to Llandudno Corporation. It's also seen in the film version: Episode 2.11: Ways and Means:
Somewhat off route in rural Yorkshire is OU9286, a 1931 Dennis 30cwt with Short body preserved in the livery of its original owner, King Alfred Motor Services of Winchester (thanks Pete Staples) Episode 5.01: Against the Odds:
Although it carries fleetnames for United Automobile, KJH492 is a 1948 Bedford OB/Duple in the livery of Elton's Coaches of County Durham: Episode 5.02: Place of Honour:
Another Bedford OB/Duple, identified by John Wakefield as LYB941, which was new in 1949 to Tor Coaches of Street, although there are no fleetnames seen here: Episode 5.03: Choose a Bright Morning:
LYB941 again: Episode 5.07: A Present from Dublin:
Extended footage of LYB941, with inside views: Episode 5.10: The Female of the Species:
CCR notes "ex United Automobile Bristol L LHN823 which was owned at the time by Bob Robson, the depot Engineer at Durham depot." (thanks CCR) - a 1949 L5G/ECW new as United BLO423: Episode 5.12: Two of a Kind:
LHN823 again, this time better seen:
Episode 7.10: Old Dogs, New Tricks
....and a peripheral view of LHN823: