Krypton
The premise: 200 years before the birth of Kal-El (Superman), his grandfather, Seg-El, attempts to redeem his family’s honor and keep Krypton from falling into chaos.
How Syfy managed to steal a DC property away from the CW, we’ll probably never know. But Krypton isn’t your typical Justice League prelude. Since it takes place 200 years before Superman was ever a thing, you won’t have to worry about it being another rehash of what it’s like for an alien to grow up on a Kansas farm. Which, thank God, because haven’t we had enough of those?