Brady Bunch, The - I Wish I Could Jump That High
in the episode, Mail Order Hero, Bobby is having a dream about playing football with Joe Namath in his backyard. Joe Namath throws the football to him and Bobby jumps really really high in the air to catch the football. Watch real close. As he is jumping, you can see the safety string/harness tied to the back of his football uniform as the crew is pulling him from off the ground. Definite slip up.