This is an interesting article that talks about the history of the Friar's Club Roasts, and compares them a bit to Comedy Central's attempts.
I actually bought my Dad a box set of DVD's that has all of the Dean Martin era roasts years ago, I love watching them still.
http://splitsider.com/2011/06/the-roast-a-history/The sets of roasts today are designed to emulate that closed-doors conviviality of the Rat Pack-era Friars’ Club, with a smoky dais, champagne glasses, and leather couches. It’s tempting to imagine the past as a time of infinite glamour and class (have you seen Midnight in Paris yet?). But how classy were those 60s roasts, really?