There are very comprehensive guides to this already but I will go over the procedure quickly, if you are stuck google "Sideload onto oculus go tv"

1, Enable developer mode - go to www.dashboard.oculus.com and register as a developer by "creating an organisation" and accept the developer agreement.

2, Open the oculus go smartphone app go to "more settings" and activate developer mode that should now be visible.

3, Install the drivers that allow you to sideload to the Go from PC connection. Here is the link https://developer.oculus.com/downloads/package/oc... to install unzup the package to a directory easy to get to (eg, C:\ADB) in the windows CMD and right click "android_winusb.inf" and click Install.

4, Download an FPV viewer apk from an android mirror site or follow a tutorial on how to extract an installed APK from your phone, I used "FPViewer", place this file in the directory you installed the ABD drivers too and change its name to something simple for example "FPVapp.apk" this saves typing out a long name when installing.

5, Open up a windows command line by typing CMD in the search bar

6, Go to the directory you extracted the oculus developer drivers to, example type C:\ADB

7, Sideload the app with the command adb install -r FPVapp.apk the app should be transfered to the oculus ready to install on oculus TV

8, Open Oculus TV, and open TvAppRepo, in here you should find the FPV viewer apk, it may have a strange name so read the titles completely if you cant see it immediatley. Select the Apk to install it and follow the instructions. You should now be able to open it up on the Oculus TV app, it will be proably at the bottom of the list without an icon.