if you would like to use the Android TV launcher found on the Nvidia Shield on your Chromecast Google TV then follow the steps below
(APK at the bottom of the page)
Steps to confirm your Device IP address and confirm ADB is enabled:
- Go to settings — Device preferences — About

2. Inside the About page, scroll down to Build and press select 7 times

3. Press the back button and scroll down to “Developer options”

Find USB Debugging in the list and turn it on:

Install the APKs below and then open up the Launcher Manager

Click on Disable Stock Launcher

Press the home key and you will see

Select Android TV Home and choose Always if you always want your device to launch Android Home Launcher when you press the home key.
If you want to restore the stock launcher, open up the Launcher manager again
Click on Enable Stock launcher

Software Needed
Launcher Manager (Chromecast Google TV) Use this for Any Android TV 10 Device
Alternative Launcher
Wolf Launcher (Chromecast Google TV)