Tom's Robin Williams impression stuck with me for a long time, refering to him hounding the UCB theater. It was just one sentance, but it was suprising and hilarious.
Also, Tom's Kevin Smith impression while discussing the Evening with Kevin Smith 2 DVD. It was oddly accurate without sounding very much like him at all.
UNFUN FACT: When I heard my first* clip of the best show, it was around the same time Kevin Smith had went and done a one-off radio show, that me and my friends made fun of a lot without actually listening to it. When my friend sent me the clip, my first reaction was that I thought it was Kevin Smith's radio show, and that poor sound quality messed with Kevin's voice (The clip was of mac getting told to get off tom's phone). I remember being suprised that Kevin Smiths radio show was actually funny.
*UNFUN FOOTNOTE: Actually, the first time I heard the Best Show was listening to Petey's Aqua Teen Hunger Force interview, and I honestly thought Tom was Petey's dad and this was some kinda radio show they did from their house. I just imagined a guy at his kitchen computer and his son calling from his bedroom, because for some reason thats the only way they can make it work. As I got more into the show I was suprised it was the same show I'd heard years before.