Never watched the show as a kid in he 70's, or indeed later life (the father in law has it on constantly mind...), but aware of a fair few episodes I've caught now and again (I get a bit nauseous when they play that clip over and over again). Obviously contains magic elements to be still talked about so much to this day. I'll probably sit through a few one day...
This was great though (and it worked as it captivated me as a 'non fan'). Utterly surprised that was John Sessions and the rest of the cast were ace.
That Richard Dormer (David Croft) has been excellent in pretty much everything I've seen in him. Really, really like him as an actor.