In anticipation of HBO’s The Girl, premiering Saturday, October 20th with Sienna Miller as Tippi Hedren and Toby Jones as Alfred Hitchcock, Tv Food and Drink is celebrating its favorite film director for the entire month of October.

Hitchcock made some of his most ambitious and acclaimed films between the years 1950 and 1960 including Strangers on a Train, Dial M for Murder, Rear Window, The Trouble with Harry, The Man Who Knew Too Much, Vertigo, North by Northwest, and finally Psycho in 1960. Not a bad ten years. Add to that the premiere of his highly-successful television anthology series Alfred Hitchcock Presents in 1955, and you’ve got what is undoubtedly the biggest decade of his career.

This episode of What’s My Line? originally aired on September 12, 1954, right around the premiere of Rear Window. Hitch’s total lack of vocal disguise (and why should he bother…. he’s Alfred Hitchcock!) leads me to believe that the panel played along as long as they did for the fun of it… and because they knew how to make good television.  You can watch for yourself below.