TCL Alto 8 Plus Quick Start Manual page 106

You need only complete the authorization or activation step one time, when you
initially add the streaming channel. After that, you simply select the streaming channel
tile from your Home screen to start watching. (Channel and content availability is
subject to change. Charges may apply to your selection.)
Tip: New streaming channels are added continuously to the Roku Channel Store, so be
sure to check back every now and then for new options.
Note: If you don't remember your PIN, or if want to change whether you need to use a
PIN to make purchases on your Roku account, see
PIN preference.
Changing your Roku Channel Store
95