Regis just screamed and tried cracking jokes on contestants as they ponder questions from $64,000 and up. Geez, let the player think and concentrate! Besides, when someone did win $1,000,000 with Regis, he just screamed "HE JUST WON A MILLION DOLLARS!", hands the check, drifts away from the player and walks back to the center stage entrance (like itiparanoid13 stated).
Meredith hugs, cries, cheers, shows excitement on her face, etc...Hell, Meredith showed more enthusiasm on players winning $100,000 and up (especially with Lyn Payne's $500,000 win). Even with Payne walking with the $500,000, Meredith still shows the same emotion as in a $1,000,000 win. Yes, it's fun to joke around here and there on the first two tiers, but once you reach that second milestone question and up, no more play. It's serious. People complain about the time limits because of the lack of interaction between host and player. First off, this interaction is done at the player's introduction, sometimes in-between questions, and from commercial breaks. There is still time to tell stories and get to know the player before playing for money. When it comes to actual game play, let the contestant think the question through, answer it and move on with the game.
Contestant Kevin Maroney (I think season Season 4 or Season 5) said it best: "We're here. We are here...in this seat...to answer questions under the lights." And that is what Millionaire is. Answering question after question to win money. Sure, it's fun to poke around here and there. It's not a biography of the contestant. Better yet, the core of the show is listening to the contestant speak thoughts out loud on what they believe the question is, what lifeline to use, the struggle between two answers, etc...
One more thing. I have to defend the clock hardcore. The time limit is there to prevent contestants from making guesses out of the blue that could cost them lots of money. What the clock does best is that it speeds up your thought process on the question so you could arrive at your BEST answer. I don't know about you, but with 10 seconds left on the clock, seeing the contestant do the "should I go with it/should I not" gestures is quite intense at the clock dwindles down. Being in the studio during questions where players were going for $100,000, $250,000 and $500,000...it is VERY intense and exciting. I have sat during games (pre-timed limit) where players took 5-10 minutes to answer Tier 2 questions. I almost fell asleep!
The new evolution of Millionaire is great, and Meredith is fantastic. If you don't like the show for whatever reason, don't watch it. Simple as that. The show still has a dedicated fan base.