I just watched the 1939 version and it's not the one I'm looking for. Could be the Hammer one, one of the 70s films, or the 1983 film, but no later than that.
The only visual I can recall fom the one I saw as a kid was a shot of the hound walking in slow motion over the moors and his eyes might have been glowing. It was a side or 3/4 shot and the hound looked really manacing. My memory could be way off though.

Anyone?