The unusual and notable thing about the Ghostbusters TV version is that for those six scenes, Ivan Reitman actually shot alternative takes for television with the original actors.
It actually wasn't that unusual in the 80s (though still notable).
For example, Harold Ramis shot TV takes for Caddyshack (ex., Rodney Dangerfield saying "Hey everybody, let's take a shower!") and National Lampoon's Vacation (ex., the pimp saying "Man, who do I look like, Christopher Columbo?").
I really do think the TV takes should be included, especially because of how rare they are now - starting some time in the 90s, basic-cable airings of the movie would have the original versions reinstated (I remember "This man has no dick" when Comedy Central would show it)