Jesus, Ghandi, and John Lennon are a few of the ones Bill mentions on the various comedy cds and bootlegs I own around here.
There are some free shows available to watch over at http://www.sacredcow.com/allnew/index_content.php?n=multimedia_video_bill
Check out the 'Hicks Looses It' video. Recommended++
Watch out though, some of those videos were encoded yonks ago.