At the end of the episode Murphy says to his newly named baby daughter "Lucy, you got some 'splainin' to do. This is a tagline from "I Love Lucy".
At one point the license plate on our team's vehicle has "Mexico" at the bottom below the numbers. This is impossible. Mexico has 42 states, and each one issues its own plates with its own name just like in the USA.
As Lucy is being born, the scene cuts to the outside of the barn. Up in the sky is a very bright star - shown the in a similar way to the star of Bethlehem is portrayed in the birth of Jesus.