Actuallu, P Knuckle, this Tv screening was supposed to be the original movie, complete, no edits, so I reckon the version I watched in 1980 was the same one on TV.
You're right though, remakes suck as a ruel. I can only think of one good remake, but it wasn't horror:
THE GREAT ESCAPE which was borrowed from an earlier, black and white 1950s' version starring Dirk Bogart. THE 1963 GREAT ESCAPE WAS MILES BETTER.
LB.