Jack Lemmon What's My Line? : Season 9 Episode 10

Jack Lemmon drops in as the weeks mystery guest, Ernie Kovacs is a panelist. Panelists Dorothy Kilgallen, Ernie Kovacs, Arlene Francis and Bennett Cerf begin the show by trying to guess the line of a man who signs the board as Mr. X who designs and constructs Broadway spectacular electric signs who's name, Douglas Leigh is very well known to the panelists. The challenger was never identified. Next up, a woman from Las Vegas who issues marriage licenses and just recently issued one to Bing Crosby and Kathryn Grant. Next is the nights celebrity mystery challenger Jack Lemmon, who is quickly identified by Arlene. Finally, a woman from Ontario, Canada who's a dentist.