Later sitcoms would take this premise and do their own variations on it, but in 1973, this was a highly original story. Of course, this episode is also blessed with a hilarious and brilliantly truthful script by Charlotte Brown. The “almost gifted” Bob’s reaction to Emily’s 22-point I.Q. lead is totally honest, and although his behavior could be considered petulant, the audience totally understands why. Meanwhile, the second act, in which Bob and Emily attend a high I.Q. club, consists of one brilliant gag after another. This is a fabulous episode — certainly the best of the season — and it’s recommended highly, especially for newbies and/or fans of the chemistry between Newhart and Pleshette. Definite classic.