1969 NBC Promo for "Bracken's World," the show that replaced "Star Trek"

Ever wonder what TV show slipped into the original "Star Trek"'s old time slot?  Me neither, but the answer is "Bracken's World," a drama about life in the acting industry.  It lasted a season and a half, with Leslie Nielson joining the cast shortly before its demise in 1970.  Even top-billed Eleanor Parker had left by then.