How many licks does it take to get to the tootsie roll center of a tootsie roll pop?

In 1970, Tootsie Roll Industries aired one of the most famous TV commercials of all time, featuring a boy trying to ascertain how many licks it takes to get to the center of a Tootsie Pop. Along with the two Tootsie Roll commercials, this commercial (albeit in a re-edited 15-second "hook" version) continues to be shown on television today, making them the longest running commercials of all time (). (A second Tootsie Pop commercial was created and first aired in 1996, which also continues to be shown on television today).