UPDATE: Just watched it on TiVo. Don’t agree with Geraghty that Thompson looked too thin — he looked good on my HDTV. I thought his performance was good but not stellar; if Fred Thompson can’t perform well on The Tonight Show, he’s not Fred Thompson. But he didn’t do any better than what you’d expect, considering. He did well enough; it’s what comes next that will matter.
ANOTHER UPDATE: More thoughts from Roger Simon.
MORE: Further thoughts on Thompson’s appearance here.