A bizarrely animated tv series from the early 1960s. Apparently in this version, Tin Man is a total jerk without his heart (in one episode, "Free Trade"), he apparently really hurts the Lion with the old "boxing glove on a spring in a box" gag.

It's about as weird a cartoon as anything out there, but what's interesting is that it was made by the forerunners of the Rankin-Bass studio.