In 1997 , the episodes `` Coast-to-Coast Big Mouth '' and `` It May Look Like a Walnut '' were ranked at 8 and 15 respectively on TV Guide 's 100 Greatest Episodes of All Time .
In 1997 , the episodes `` Coast-to-Coast Big Mouth '' and `` It May Look Like a Walnut '' were ranked at 8 and 15 on `` TV Guide 's 100 Greatest Episodes of All Time '' .