Knight and his former "Brady Bunch" co-star Barry Williams appeared in a 2006 episode of "That' 70s Show", in which he and Williams portrayed a gay couple who moved in next door.
Knight appeared in a 2006 episode of "That'70s Show". His former "Brady Bunch" co-star Barry Williams appeared in a 2006 episode of "That' 70s Show". He and Williams portrayed a gay couple. This gay couple moved in next door in a 2006 episode of "That' 70s Show".