Husker Du? is a young children's memory game originally published in Sweden in the 1950s, which is still in print. The name means "Do you remember?"

The game board consists of a surface with holes in it, laid on top of a dial which contains small pictures. The dial is rotated before the start of the game, so that each image falls under a hole. Each hole is covered up by a marker. On a player's turn, he or she removes two markers to reveal the pictures underneath. If the images match, the player gets to take the two markers as their score. If there is not a match, the markers are replaced and the next player takes his or her turn. The winner is the player who takes the most pawns.

The name of the game is spelled with macrons to emulate the Scandinavian custom of placing macrons over handwritten 'u's to distinguish them from other letters. The game was also the source of the name of the 1980s punk rock band Hüsker Dü.

An advertisement that aired during the 1973 Christmas Season for the game featured subliminal cuts, with the phrase "Get It". Even though subliminal messages are commonly believed to be ineffective, the FCC, after receiving a complaint about the ad, issued a public notice stating: "We believe that use of subliminal perception is inconsistent with the obligations of a licensee, and therefore we take this occasion to make clear that broadcasters employing such techniques are contrary to the public interest. Whether effective or not, such broadcasts clearly are intended to be deceptive.

In closing, we note that the Federal Trade Commission also received a complaint about the pre-Christmas announcements, and that it is making inquiry into the matter in light of the laws that it administers."

The Premium Corporation of America voluntarily removed the commercial from the air, claiming that the subliminal message was inserted in the commercial by a misguided employee.