Between the 1960s and the early \'90s, when the first few Password incarnations aired, most Americans still had a decent command of the English language. We even knew the difference between their, they\'re, and there. Synonyms didn\'t throw most people if they had at least a basic education. Furthermore, contestants weren\'t chosen mainly for their physical hotness, intelligence be damned.
Also, we were blessed with decent attention spans. Since the game itself was fun and interesting, we didn\'t need huge cash prizes to make the show exciting. The top prize in 1966 was, what? Five-hundred a game? Even then, that was practically chicken feed. And look at the top prize for a contestant on What\'s My Line? or To Tell the Truth back then.
The game of Password doesn\'t work, for me anyway, with all kinds of suspense, scary music, and excitement. It\'s a frickin\' parlor game, and it\'s a good one.