The NBC 1990 run that returns next week reminds me a lot of 'The Tonight Show w/ Johnny Carson' at the time.
As one of Mark Goodsons last shows, he clearly was not concerned about new talent or alterations that could have made the show stand out some for new viewers. Likewise the 'Tonight' show at Burbank was nearing the end of its run at the time and was similarly complacent.
I'm not saying it not a bad thing, just that both shows represent a watershed moment before the NBC of the Nineties ('Seinfeld' ,Jay Leno) took hold.
Next Monday I'm most interested in seeing if GSN runs all of the NBC Nineties show, not just the Alex Trebek ones.