The CW premiere dates are in, which means it's time to mark the beginning of the end for the network's two longest-running shows: Supernatural and Arrow.

The fifteenth and final season of Supernatural will premiere Thursday, Oct. 1o at 8/7c, followed by the Season 2 premiere of Legacies. The final season of Arrow is premiering the following week, on Tuesday Oct. 15, where it will be paired for the first time with its spin-off The Flash. It's unclear whether Arrow's final season with carry over into January, especially since two of the five Arrowverse crossover episodes this season will reportedly occur in January.

And speaking of the Arrowverse, the network is putting a great deal of faith into its newcomer, Batwoman, as the new superhero series has been chosen to kick off The CW's October premieres! This freshman series will debut Sunday, Oct. 6, and it's unsurprisingly been paired with Supergirl. We kindly request that Sunday change its name to "World's Finest Day" in celebration.

The CW's 2019-2020 Fall TV Lineup: What You Need to Know

If you miss out on the Batwoman premiere though, never fear! There will be two encore showings of the premiere: Monday, Oct. 7 after the Season 2 premiere of All American the night after that following the Season 6 premiere of The Flash!

Check out all the premiere dates for The CW's fall lineup below! New shows are in ALL CAPS.

Sunday, Oct. 6
8/7c: BATWOMAN
9/10: Supergirl

Monday, Oct. 7
8/7c: All American
9/10c: BATWOMAN (Encore of series premiere)

Tuesday, Oct. 8
8/7c: The Flash
9/10c: BATWOMAN (2nd Encore of Series Premiere)

Wednesday, Oct. 9
8/7c: Riverdale
9/10c: NANCY DREW

Thursday, Oct. 10
8/7c: Supernatural
9/10c: Legacies

Friday, Oct. 11
8/7c: Charmed
9/10c: Dynasty

Monday, Oct. 14
8/7c: All American
9/10c: NANCY DREW (Encore of series premiere)

Watch the Trailers for The CW's New Fall Shows

Tuesday, Oct. 15
8/7c: The Flash
9/10c: Arrow

Monday, Oct. 21
8/7c: All American
9/10c: Black Lightning

(Disclosure: TV Guide is owned by CBS Interactive, a division of CBS Corporation.)

<p>Jared Padalecki, Jeffrey Dean Morgan and Jensen Ackles, <em>Supernatural</em> </p>

Jared Padalecki, Jeffrey Dean Morgan and Jensen Ackles, Supernatural