Question for Dec 16th, 2009

X is a form of fiction that got its name because of the involvement of companies like P&G, Colgate Palmolive and Lever Brothers. Each part of X typically ends on some sort of cliffhanger. The earliest popular instances of Xs are The Coronation Street in UK and Guiding Light in USA, the longest X, that began in 1937 and ended just a few weeks ago, in 2009. Id X.