View on HBO, , PSVue via HBO, or Prime Video with HBO Subscription. Season 2 will feature 10 episode of varying lengths. 60+ minutes looks to be standard this season.

Episode 1, titled "Journey Into Time" premiered on 4/22/18. Future episodes will air each Sunday.

The first 5 episodes screened for critics, so beware of critics theorizing stuff, since they've seen the first 5 episodes.

Episode 1 Reviews/Recaps:

Vanity Fair: Westworld: Unlocking Nine Important Questions, Callbacks, and References from That Premiere, Westworld Season 2’s Most Important Revelation, Explained, Westworld Premiere Blows Two Major Fan Theories to Smithereens

IO9: Westworld Returns and Nothing Is as It Seems Except for All the Corpses

AV Club: Westworld is back, heavy on the violent ends

EW: Westworld premiere recap: 'Journey Into Night'

USA Today: 'Westworld' Season 2 premiere recap: Welcome to the brave, bloody new world


The Ringer:
Decoding Westworld: (Disclosure: I am a Patreon supporter)