This from the eighties. Watched it the first time around and watching it again now. Excellent writing, production and characterisation with a fitting sound track by Clannad. It dealt with the Robin Hood myth in a way never been done before, mixing historical accuracy with surreal pagan mysticism.
Not only did it get away with it, but certain original ideas have been adopted into the legend in several subsequent retellings. As such, it captured and advanced the very concept of mythological telescoping at the heart of folklore, legend and myths.
Minor criticism on a random Stonehenge monument popping up and the violence was heavily sanitised, but apart from that, it was a unique slant on the Robin Hood ballads that endures today.