Imdb.com usually provides such answers but there seems to be no reference to a BBC series of that name in 1975 or 1976. If you're referring to the 1978 educational drama series, the actors were Donald Gee and Bob Hoskins: http://www.imdb.com/title/tt0480065/
Eureka! Thank you. I'd love to know how you found that; I'd looked everywhere that I could think of.
A recent TV programme, about Britain in the 70s, showed the people in 'On the Move'. I recognized them all, but one - a young lady, who I thought I knew, but couldn't name.
I checked that website and the only actress, whose name I'm not familiar with, is Gay Hamilton.
Once again, I've looked for info, but can't find any pictures to confirm that this is the lady in question...hm!
Thanks again. You're a good'un and no mistake!
According to IMDb she's been in so many things, but I don't recall seeing any of them, apart from (perhaps) 'The Likely Lads'...and I've slept since then.