I wouldn't waste my time Pocatello- he clearly thinks he knows it all when in fact he actually knows nothing whatsoever about the history of US tv and it's post production blip .
It is very old news for most people so it should be easy to find some clarification for those who were never there while it was going on.
As if a show that was made at the "exact same time" looking better is enough to say that the facts are untrue.
But we already know that even while Star Trek TNG and other shows from the US started the post production on tape ball rolling about 1987 there were shows like Quantum Leap that stayed with film right to the end in 1993 .
I can't think of any other US one hour show that was still doing that in 1993 .
Even shows that had started on film like Dallas ,Knots Landing etc all switched over to tape post production by the late 80's.
It is a major headache for US companies now that HD is here and they have such a large amount of their catalogue that cannot be mastered for HD without considerable work.
I believe Seinfeld has but I'm guessing there is not much extra work to do on that once the rescanning of the negatives has been performed.
Unlike Star Trek shows and things like The X Files where the huge amount of effects work means that an HD remount would cost a fortune.
I would have thought that Dallas was in a similar boat .
After studio filming was done there can't be much extra to do from a visual POV so an HD remount of Dallas would be much easier to do than the aforementioned fantasy shows