“Malcolm in the Middle” and “Buffy the Vampire Slayer” have each generated $100 million in streaming revenue since 2020

How exactly do they determine that an old show like those generates that much revenue for a streaming platform? Is it just like if I spent 50% of my streaming time on Buffy one month then 50% of my subscription fee that month is seen as revenue from Buffy?

Hulu could’ve had it all🙄