Pictured here is a behind-the-scenes shot of Eve Plumb (Jan Brady) and Maureen McCormick (Marcia Brady) rehearsing on the Paramount Studios lot for The Brady Bunch in 1972. The show became a smash success, but not until its original run went off the air and it entered syndication. The afternoon time slot made it perfect for kids to watch after school, and it soon gained a huge cult following. Maybe Marcia knew all along that the show would become a hit. That would explain her coy smile for the camera in this cool set photo.