Nice find. Shooting alternate scenes for tv seems to be rare prior the 80's.
The Smokey and the Bandit movies have a lot of profanity redubbed, by someone who sounds more like Fred Flintstone than Jackie Gleason.
The most extensive tv cut I recall was one of the Cheech and Chong movies. All the drug references were totally removed, and a suitcase full of hasish was turned into a suitcase full of diamonds. I kid you not.
The cut to Jedi you describe sounds like they wanted to stuff in more commercials. The "edited for television" caption often meant "sliced to ribbons" to many movie fans.