I Love Lucy - Wrong Fruit
When Ricky & Lucy move to their new house in the country Ethel & Fred send them a basket of fruit.
That night Fred & Ethel decide to visit them. They think Ricky & Lucy are out but they are sleeping upstairs. So they sit down to wait.
Fred sees their basket of fruit..He's eating an apple Ethel is eating a banana. Later when Lucy & Ricky hear a noise and are investigating, they see on the table an orange and a banana. An orange wasn't used at all. Fred was eating an apple.