The television movie 'Babylon 5: In the Beginning' was first aired, expanding the Babylon 5 universe by covering the Earth-Minbari War.
Production and filming of the TV film 'Babylon 5: In the Beginning' took place, involving pre-production, shooting, and post-production.
The original Babylon 5 TV series, the precursor to 'In the Beginning', aired and established the show's universe.