Board Thread:DC's Legends of Tomorrow discussions/@comment-9346948-20160520001634/@comment-25811707-20160719025516

Kaestal wrote: They probably write almost, if not the entire season before the first episode airs dude.... that is a whole lot of concepts, interactions, and plot that needs to be thought about and written, probably revised too.

Of course I could be talking out my ass, but it seems reasonable. All TV shows write the episodes by the time the first episode airs. And then they film all the first half before the show airs then when it is going througj the episodes they film the other half and work on post-production