M*A*S*H - Spam Lamb
In the episode where the Greeks bring food from their country to the 4077th, they bring a lamb. Radar sends the lamb home, so the doctors end up making a SPAM lamb. When it is brought out, it has eyes, made out of something white. When Hawkeye says "A SPAM lamb!" the shot flashes to the lamb, and the eyes are gone! When it flashes back later, the eyes are back!
the episode where the Greeks give food to the 4077th