Blue Peter | When Motorways didn't have Traffic Jams (1965)
There aren't many children's programmes which would make a film about a motorway and the workings of a multi-storey carpark, but Blue Peter did just that in 1965.
1965-06-14 19:00:00 - BBC Archive
Presenter Christopher Trace took a quick drive to London Heathrow Airport on a newly opened section of the M4 motorway where, at that time, you could drive "as fast as you like".