(BBC documentary series, 1952-65)

Episode 5.01: A Girl Comes to London:

Looking at young women coming to London to find work.
There is footage of London Transport RTLs and RTs:

More interesting is a tour of London aboard Banfields 109DMM, a 1955 Leyland Tiger Cub PSUC1/2 with Burlingham Seagull coachwork: