So cool! The entire panel from I've Got A Secret Plays What's My Line! | Buzzr

I've Got A Secret! - Fred MacMurray 11/11/1959

Some trickery with Grace Kelly - What's My Line 1956 | Buzzr

Talented relatives of celebrities appear on "I've Got a Secret" (February 26, 1958)

A SPOOKY SURPRISE from VINCENT PRICE! - What's My Line?| BUZZR

Golden Age Hollywood Actors Who Were Little People

What's My Line? - Noel Coward; Robert Preston [panel] (Jan 12, 1964)

I've Got A Secret - February 25, 1963

I've Got A Secret - Philo Farnsworth, Buster Keaton 1957

What's My Line? - Tom & Dick Smothers; PANEL: Steve Allen, Dina Merrill (Jan 29, 1967)

What's My Line - A sad & heartfelt goodbye to Fred Allen | BUZZR

What's My Line?│Fun and Funny Moments

BLACK OUT ON SET! TUNE YOUR DIALS! - 1963 I've Got A Secret | BUZZR

What's My Line? - Clete & Ken Boyer; Phyllis Diller; Sammy Davis Jr [panel] (Oct 11, 1964)

I've Got A Secret (October 7, 1963) - James Garner

I've Got A Secret - Featuring Peter Gabel, Jonathan Cerf and Kerry Kollmar! (Oct 15, 1958)

The Honeymooners Stars on What's My Line? - Jackie Gleason, Audrey Meadows, Art Carney

Best Celebrity Moments of What's My Line Part 2

I've Got a Secret 1965 - A HILARIOUS TEST of SECRETS by LIZA MINNELLI | BUZZR

What's My Line? - First-Recorded Synd. Episode (Sept. 9, 1968)

I've Got A Secret! - Dick Van Dyke 3/11/1963