Watched 'The Implant' the other night, and my wife noticed that Betsy (George's hard-of-hearing girlfriend) was Karen Walker from the show Will & Grace. A quick check showed that it was indeed Megan Mullally in that role. I didn't recognize her at all. Damn, this show has helped launch a lot of careers!
Minor observation: Love how George sticks to his guns on the chip-dipping issue. "Just dip it once and end it!" We see George still double-dipping a couple of episodes later, when he's backstage at the taping of The Pilot talking to TV-Kramer.
~jw