Television's 11 Longest-Running Game Shows

What's My Line?

In What's My Line?, four celebrity panelists tried to guess the occupation (or "line" of work) of a fifth, secret contestant by asking only "yes" or "no" questions. During the third round, panelists were blindfolded and challenged to guess the identity of a "Mystery Guest." The original run of the show (which paid players for appearances, since prize money never exceeded $50) ran from 1950 to 1967, but since then several revivals have been launched. Celebrity guests have included author Gore Vidal, actor Jane Fonda, and singer Bobby Darin.