Mike finding old Pryor stuff reminds my of what Robin Williams said the other night on Leno. He is doing stand up again an trying material out in small clubs unannounced before his big show in LV. A significant portion of the audience either doesn't know who he is or says... You are that guy in that movie, right...
The 70s-80s were the golden age of comedy. Today we have Dat Fan (Phan?) one liners about his ethnicity winning him last comic standing.