Bill Moyers was promoting his new book of interviews last night on  
TDS.  Turns out that Jon Stewart is the first interview in the book.   
Moyers reported that people have wondered why he would lead with JS,  
and his response was:

"Mark Twain wasn't available."

To his credit, JS humbly acknowledged that he and the crew on TDS  
aren't qualified "to dye that man's moustache."

True, but maybe there's solid ground for JS to be nominated for the  
Mark Twain award rather than having it become a kind of SNL emeritus