In an episode of Murder she wrote, Angela Lansbury is dining with a companion in a restaurant. They each have a glass of wine. Due to a conversation with Angela, the companion is embarrassed and she drinks her entire glass of wine in exasperation. When they are eavesdropping on a conversation, with other characters in the scene. The camera is going back & forth to the characters and to Angela's table. Her companion's glass is half full. Seconds before it was empty.