Marketed to people who wanted to keep "tabs" on their weight, Coca-Cola's first sugar- free drink once dominated the diet soda market.
Its decline began in 1982 with the launch of Diet Coke. Today it can be difficult to find, but it still has a cult following with U.S."Tabaholics" still buying roughly 3 million cases last year, says Beverage Digest.
As a symbol of the 1970s, Tab has made appearances in "Austin Powers" and "That 70s Show." Notable Tab drinkers: former Coke CEO Neville Isdell.