Logitech Harmony Hub & IFTTT Integration Guide
This is a guide to controlling your TV using Google Home with the Logitech Harmony Hub and IFTTT. There is also a brief overview for controlling your TV with the Google Chromecast. The best way to control your TV with the Google Home is with the Harmony Hub. In order to configure this, you must use the IFTTT app, which allows Google Home to communicate with the Harmony Hub. Another alternative is using a SmartThings Hub to allow the two hubs to communicate.
Unfortunately, control is limited to starting/stopping an activity. You are not able to control volume or directly tune to favorite channels like you can with the Amazon Echo.
Home Automation Guide Part 1 - https://youtu.be/yvu53o-wFJ0
Home Automation Guide Part 2 - https://youtu.be/i03SimwBEFo
Home Automation Guide Part 3 - https://youtu.be/gIaePYhdpRw