Hey new to the forum don't consider myself s hacker but I know a little bit of stuff
Installing apps on the Sony GTV
First Download OI file manager to explore your files
Get a usb jump drive
Go into your tv settings
Applications management
Check off allow installation of unknown sources
Download some apks on your pc
Make a folder name on the drive copy your apks to this folder
Plug in your jump drive
Open OI file explorer
Click on the home icon in the top right coner
Navigate to. mnt/media/(random name that will contain USB)/(folder name)
Click on any apk and install
Removing an app that does not work
Go to tv settings application management
Search for the app click unistall
Hope I covered everything