Patricia Porterfied and J. Keith van Straaten Patricia was the first 'guest' on the original show when it made it's debut in 1950. She was a Hat Check Girl at The Stork Club Photo

From: Photo Coverage: 'What's My Line?' Live on Stage

van Straaten Entertainment, inc. presents the East Coast debut of What's My Line? - Live On Stage, a live, non-broadcast stage presentation of the popular game show that ran on American television for over 25 years. J. Keith van Straaten (Comedy Central's 'Beat The Geeks' and VH1's 'Best Week Ever') hosts a panel of noted personalities along with weekly surprise celebrity 'Mystery Guest.' Past Mystery Guests have included Larry King, Drew Carey, and Shirley Jones. Departing from the 30-minute format of the original television series, the 75-minute stage version will also feature live music and performances. What's My Line? - Live On Stage, which had an initial run of six shows in November and December of 2004 in Los Angeles and ran over three years, will open Monday, March 24th with its 75th installment and play Monday evenings at 8:00 pm through April 28th.