Oh I think it was endemic within te BBC not just Who, and probably at ITV andin many other areas of society as well.
I doubt it was even exclusive to the UK, we've all heard of Gene Roddenberry's exploits, and I seriously doubt he was acting in a vaccuum, rather then within a system that accomodated sexist behavior.
One Day I hope to be the Man my Cat thinks I am
Where are we going? And why are we in this Handbasket?