Retired couple. Said that they sold a home in Oregon to the Simpson's production company for use by Nancy Cartwright. They got to meet her and some of the other people involved with the show. With that done, they then had an interest in The Simpsons and bought the grill at an Orchard Supply.
They said that they cooked on it five or six times, then switched to gas. It was kept covered in the garage. DD code. No chips in the porcelain at all, and squeaky clean except for the grill.