The last couple of episodes of MST3K aired on the Sci-Fi Channel back in August/September of 1999. I was fifteen. And the thing is, I totally remember watching those episodes when they aired: Danger: Diabolik and Merlin's Shop of Mystical Wonders. Two pretty memorable MST3K episodes in their own right.
Eighteen years later, here we are, and MST3K feels like it's managed not to miss a beat.
I'm seeing a few critics complain that the humor is a little too polished, too referential, and (above all) faster—more jokes coming at you a mile a minute. And the difference is noticeable, sure; but I actually find that I like the faster pace. I always was a sucker for quick banter (Groucho Marx is one of my favorite comedians of all time), and the fact that the new show is full of "nerd culture" humor—D&D references, call-backs and easter-eggs that refer to the old show, etc.—just makes it appeal to me even more. I found myself just plain cracking up multiple times during the first couple of episodes, whereas old MST3K was usually more apt to induce the same soft chuckle used by Kevin Murphy as he voiced Tom Servo during the show.
Anyway: if you haven't yet, check out the new MST3K. It's comedy gold and pure B-movie awesome.