Yeah it is a bummer, but remember MacGyver was made in a era before DVD's or any other form of media sharing was event thought of.
Back then the closest we got to out-takes was a show called TV Bloopers and Practical Jokes.
Some other old shows have got blooper reels on the DVD releases though, but then they also have remastered picture and sound too, something Paramount seems unwilling to do for one of their biggest shows ever.