Droodles were lines on a piece of paper (on TV, a cue card or idiot card as it was called in those bygone days). The droodle might look like this :||: The caption could read, "A bear climbing up the other side of a tree." One of the most famous droodles used on the program was entitled, "Boat Arriving Too Late To Save A Drowning Witch."
The show was hosted by Roger Price, a comedy writer, who resembled the ubiquitous game show host of the day, Bill Cullen, then in charge of the popular "Name That Tune." Price with his partner, Leonard Stern, had turned droodles into an extremely lucrative business enterprise. Author of the best sellers, "Droodles" and "Classic Droodles," Price was much in demand by TV executives, who themselves saw droodles that looked like this $$.
There were three regular panelists, playwright Marc Connelly (author of "Green Pastures"), actress Denise Lor ("The Garry Moore Show"), and funny man Carl Reiner ("Your Show of Shows"), attempting to guess the captions for droodles submitted by home viewers or by Roger Price himself. If the droodle presented by a viewer stumped the panelists then the drawer received a prize. There would be a guest panelist each week signing in by drawing his/her own droodle. The three regulars tried to guess the caption before the guest was seated on the panel. I recall vividly Carl Reiner and Denise Lor. Marc Connelly is rather hazy for me now.