Babylon 5 Season 1 SD Digital is currently $4.99
At the bottom of the episode list it says -
"Bonus: Babylon 5: The Gathering"
"Buy SD $0.00"
Right now, "The Gathering" is straight up free. No purchase necessary.
But it wouldn’t be surprising if that changes.
https://www.amazon.com/Mind-War/d…deo&sr=8-1