The shows they've reaired this week shows just how enjoyable these shows can be with the right celebrities. Sure, many of the celebrity shows they've aired in the past have been downright painful to watch, but when you have celebrities that aren't completely dumb and can competently play the game, the end result is a very enjoyable blend of quiz show and comedy.
Is it something I want to see all the time? Hell no. But as a special week every now and then, with the right guests? Yeah, sure, it's good fun. No need to be super serious all the time.
Seriously, though, I've really enjoyed these "from the vault" episodes and wish it were longer than four weeks. They chose a great batch of shows to air, plus hearing the older cues and seeing Alex in his prime before his age caught up to him (not saying he's bad now, he's certainly not, but you can tell he had so much more energy back then) has only helped me realize why I love this show so much.