Tonight’s episode is called “Tudor Week,” and pays homage to the court and royal treats available in the time of King Henry VIII, with such showstoppers, or meal-enders, as fancy cakes (pictured) and centerpiece pies. Today, though, even with all specialty grocery stores and the Internet, it won’t be easy to find the ingredients for some of these fabled Tudor pies. Try shopping, for example, for four and twenty blackbirds… Check local listings.