'Edible marine bivalve with a dome' value $800 answer Trey Parker film featured Alan Oppenheimer as Cecil B. DeMille' value null answer Peggy Noonan round Jeopardy! Show_number 2981 category SALAD air_date 2011-04-14 question 'Figueres Spain & California except this one on Wyoming's license plates' value $800 answer Prince Charles.