This episode kind of connects to the universe that the 1978 television series Taxi takes place in. Alex Russo was born the Sunshine Cab Company's cab #804. Not only is that the same company that the series Taxi revolves around, but that exact cab was part of a season 1 two-part episode entitled "Memories of Cab 804" in which the cabbies recollect all of the memorable events that took place while they drove that cab. In Part 2, Alex Reiger (played by Judd Hirsch) recalls the time a woman gave birth in the back of the cab. If only this Taxi episode had originally aired 15 years later and Maria Canals played that woman, Alex Russo could have conceivably been born on another series!
Alex is born in cab #804. This is the same cab number in which Martin, Niles, and Frasier deliver their driver's baby in the show "Frasier."