For what it’s worth I was able to find something about Knight Rider: apparently a German company called Turbine was able to release a set that had the episodes with ALL the original music intact and nothing missing.
So that’s one show covered. Checking my options about MacGyver and Quantum Leap. What I’ve found about QL is that the Fabulous Films UK set is the best way to get an uncut version of one episode, but it might be worse than the US Mill Creek set in other ways.
MacGyver I’m totally up in the air about.