|ABC Primetime, May 28, 1975|
|Ed Sullivan Theater, New York City, New York (1968-1971)|
NBC Studios 8H and 6A, New York City, New York (1971-1975)
What's My Line? at 25 was a television special chronicling the life, times, and excellent moments of the show.
- After being off the air for more that 39 years, this special was re-broadcast at midnight on GSN as of December 24, 2014.