http://books.google.com/books?id=9UgEAA ... 22&f=false
I love looking in Google books because you can reference different magazing articles on Jack Benny. Here's one I found from Life magazine from 1947. Its starts off on page 86 with some information and pics of Benny, his cast and his writers. Then it gives some commentary on page 88. The writer wasn't particular impressed with Jack Benny but the article is interesting, nonetheless.