Set Up a Smart TV or Voice Assistant
Smart TV: connect to Wi-Fi
Open Network settings on your TV.
Choose your Wi-Fi, enter password, and connect. (Roku path: Home → Settings → Network → Set up connection.) Roku
Google Nest speaker/display
Plug in the device.
Install/open the Google Home app.
Tap + → Device → Google Nest or partner device, then follow prompts. Google Help
Amazon Echo
Plug in your Echo.
Install/open the Alexa app.
Devices → + → Add Device → Amazon Echo → follow prompts. Amazon+1
Why this helps: Using the official apps ensures the right drivers/permissions and automatic updates.
Sources: Roku Google Help Amazon Alexa