- As he, Fozzie and Gonzo leave the post office following the musical number, Kermit notes that he hopes the Christmas cards they just mailed will reach their recipients in time. The special takes place on Christmas Eve.
- Related to the above, why did Claire wait until Christmas Eve to send her letter to Santa? It wouldn't stand a chance of reaching the North Pole in time via the postal service.
Headscratchers / A Muppet's Christmas: Letters to Santa