The 1953 Roald Dahl short story 'Lamb to the Slaughter' had a wife killing her abusive police detective husband by crushing his skull with a frozen leg of lamb. She then roasted the murder weapon and served it to the cops and detectives investigating the case.
Lowell tries to sell Roy some Car-B-Q cookware. The 1989 book 'Manifold Destiny' popularized the concept (if not the practice) of cooking foods using the heat of a car's exhaust manifold.
9 years after this episode aired, Tim Daly starred on the remake of "The Fugitive" TV series.