I'm trying to ID a film or episode I saw in the mid 70's on UK TV. It was American, and featured a football player who loses his hand/arm in an auto accident. He receives a transplant from a recently executed killer, which results with him trying to strangle his partner while she sleeps on the sofa. He eventually decides he can no longer live with it and removes the offending appendage via another car accident.
It doesn't feature Ray Milland, and isn't the Night Gallery episode which is on Youtube.