Under the normal luncher you will see a PTS one where you will need to download the full game.
I find pretty useless to download the pts now cause the live version is more updated that the pts.
Hey there, @Bcunniffe97. Once you enable the "Show Public Test Environment" setting, you should see "The Elder Scrolls Online (PTS)" listed under the Games section on the main page of the launcher. If not, try closing and reopening the launcher. Let us know if that helps!