'I'm speaking English backwards' (I've Got a Secret 12/7/60)

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

Father of 27 children (I've Got a Secret 7/8/59)

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

What's My Line? - Fred Allen (Jul 17, 1955)

NON-STOP - FULL EPISODES - +4 Hours - The Beginners Bible

To Tell the Truth - "I've Got A Secret" crossover episode! (Jan 18, 1965)

'I'm wearing 14 different outfits' (I've Got a Secret 11/30/60, 1 of 3)

I've Got a Secret - November 6, 1961

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

What's My Line? - Nancy Walker; Johnny Carson [panel] (Jul 30, 1961)

Revenge on Garry Moore (I've Got a Secret 12/26/56)

I've Got a Secret: I had a date with Marilyn Monroe (and she paid for it)!

I've Got a Secret - December 11, 1952

Last Witness to President Abraham Lincoln Assassination I've Got A Secret

What's My Line? June 1, 1958: Best Contestant Ever

I've Got A Secret! - 2/4/1963 Jack Benny

What's My Line? - Betty Grable; Steve Allen [panel] (Aug 29, 1965)

Couple's secret has changed, unknown to husband (I've Got a Secret 10/12/60)

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

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