Of course, Bob and Ray were outstanding, and much of their recorded material is still hysterical today. Along the same line, there was another, similarly brilliant radio duo in Washington, DC called "The Joy Boys". The Joy Boys were WIllard Scott -- you may have heard of him :-) -- and Eddie Walker. They were on the radio for many years... even as Willard's day job was as weatherman on the DC NBC affiliate. Willard was also the first Ronald McDonald, but that's another story. The other interesting factoid: Eddie Walker is blind. Besides success on radio, he also co-hosted "AM Washington" or something like that on the DC ABC affiliate for some time.
I listened to the last incarnation of the Joy Boys show on WWDC in Washington in the early 1970's (as an aside, WWDC, just a couple of years later, was Howard Stern's first big-market gig).
There is a great website devoted to the Joy Boys at
http://www.thejoyboys.com/