Google TV has been replaced by Android TV and is included in the category of smart televisions. Based on Google's Android operating system, it is basically designed for digital media players, soundbars, and setup boxes.
If you want to set up your android tv quickly, then follow these instructions;

1) Launch the Google app on your Android phone.
2) Tap Set Up My Device or type it in.
3) You will receive a code once you have followed the instructions. Type the code into your TV.
4) When the TV appears on the screen, tap the name of the TV.
5) Following the instructions on the TV will complete the setup.
6) Using your Google Account, your TV will automatically connect to the same Wi-Fi as your phone.
For more information:
https://thetechwide.com/androidtv-com-setup/