The Brady Bunch is one of the most beloved and successful sitcoms of all time. Airing from 1969 to 1974 on ABC, repeated syndication over the years meant that all generations of Americans enjoyed the classic and super-wholesome TV show.However, despite its reputation as one of the most upbeat and cheery programs on TV, the squeaky-clean stars were hiding some pretty shadowy secrets behind the scenes.Let’s take a look at the real truth of what went on behind the set of this iconic TV show.