The term is also associated with digital storytelling and "found footage" styles of lore:
The episode "Ownership S1E0: 8bitpenis" establishes the podcast's focus on crypto-native ownership and governance models. [S1E0] origins
A lore-heavy series where S1E0 (often titled "Origins" or "Trailer") contains hidden ARG elements. The term is also associated with digital storytelling
"S1E0" is a standard metadata tag for specials , pilots , or DVD extras that do not fit into the primary episode numbering. [S1E0] origins