Things I Learned About Stephen Colbert...

...watching Frank Rich interview him at the 92nd Street Y tonight.

1)He does a great Bill O'Reilly impression -- and I'm not talking about the O'Reilly-inspired character he does on The Colbert Report.

Recounting the time he met the Fox News host at last year's Time 100 party, he re-created both O'Reilly's words and his voice: "Can I give you some advice? Watch who you book as guests. You can have Olbermann on, and you can have Franken on, but people see a pattern."