 In the season 21 episode "To Surveil With Love", Duffman makes a giveaway of Duff advertising in Moe's bar while "Get Ready For This" by 2 Unlimited plays on the background, suggesting this might be the theme song for the beer brand or for the character.Fudd, a competitor to Duff, appears in the episodes "Colonel Homer" and "Lemon of Troy", the latter showing it being enjoyed by residents of Shelbyville, rival town to the Simpsons' home of Springfield.Consumption of Fudd however is alleged by bartender Moe Szyslak to have made hillbillies go blind.