Via Your FireTV Device
Select the Search icon in the top navigation of your FireTV device.
On the search screen, input “Get Healthy U TV” or “GHUTV”.
On the search results page, scroll down to the row titled Apps & Games. Within this row, you should see the Get Healthy U TV app. Highlight the app and press enter.
On the app detail page, scroll down and highlight “Get” and press enter. The app will now download and install on your FireTV device. You may now open the app on your device.
Via a Web Browser
Go to www.amazon.com and make sure you are signed in to your amazon account that is linked to your FireTV device
Go to the Get Healthy U TV Channel on Amazon
On the righthand side of the screen, under “Deliver to:” select your compatible device and then click “Get App”