Bingo card S. Lowe contracted Columbia University professor Carl Leffler to create 6,000 random and unique Bingo cards. The effort is purported to have driven Leffler insane. Manual random permutation is an onerous and time-consuming task that limited the number of Bingo cards available for play for centuries. The calculation of random permutations is a matter of statistics principally relying on the use of factorial calculations. In its simplest sense, the number of unique "B" columns assumes that all 15 numbers are available for the first row. That only 14 of the numbers are available for the second row (one having been
National Bingo Night (U.S. game show) of the studio audience attempted to win a game of bingo while competing with a solo studio contestant. For "Bingo America", it is played as a straight general knowledge quiz format with two players and a home viewer bingo game within. Home viewers play along with pre-printed game cards that are available from the network website just before each episode airs, and are also eligible to win prizes. The show was expected to return for a five-episode run during the week of December 17, 2007, but on November 13, 2007, ABC decided to replace it instead with its new game