If you want all your programming to be shared between your TVs (subscriptions, channels/apps, etc), then you want your Roku devices to be "linked" (use the same Roku account and email address you did when you set up your first Roku device).
With this setup, any subscription or channel/app will be shared amongst the linked devices. If you add or remove from one device, it will add or remove from all of them.
support.roku.com/article
If you want your devices to be separate from each other, then you will want to create another account. (unlinked). This is generally for users that want their viewing of subscriptions and channels/apps different on each of their TVs. (not shared between the TVs)
If you want all your programming to be shared between your TVs (subscriptions, channels/apps, etc), then you want your Roku devices to be "linked" (use the same Roku account and email address you did when you set up your first Roku device).
With this setup, any subscription or channel/app will be shared amongst the linked devices. If you add or remove from one device, it will add or remove from all of them.
support.roku.com/article
If you want your devices to be separate from each other, then you will want to create another account. (unlinked). This is generally for users that want their viewing of subscriptions and channels/apps different on each of their TVs. (not shared between the TVs)
We’re upgrading Roku Community to bring you a faster, more mobile-friendly experience. You may notice limited functionality or read-only access during this time. Read more here.
Planned Downtime:
Community will be unavailable for up to 24–48 hours during the upgrade window during the week of May 19th and you may notice reduced functionality.
In the meantime, for additional assistance, visit our Support Site.
We're sorry for this disruption — we’re excited to share what’s next!
For support, visit support.roku.com.