 In the episode wherein Ricky has a week off from the club (due to  its need for a repainting job), he decides to take on all of Lucys  daily chores regarding Little Ricky. His first task is to tell  Little Ricky his bedtime story, "Little Red Riding Hood". If you  look closely at Little Rickys bedspread, it has cartoon images  (often used in advertising for the show) of his mom and pop on the  side.