According to Android TV support, I can expand my internal storage by adding a USB storage device and formatting it using the TV's settings.
The USB drive can be configured as internal storage or removable storage:
- Internal storage increases the storage capacity of the Android TV. If you choose to set the drive to Internal storage, you won't be able to move data to another Android TV or device.
- Removable storage lets you move the content on the USB drive to another device. You can store and access digital content. Apps and games won't be installed on removable storage.
The first option is what I want for my new 55W809CBU that I bought recently. The TV only has 8GB of built in storage, which I think will be decimated pretty quickly if I download some of the supported games. However, when I insert the USB, I'm presented with an option of opening apps to make use of the storage, but I'm unable to format it accordingly when I visit Settings -> TV -> Storage & reset.
I've been unable to find out if this is a limitation of the 2015 Sony TV range or perhaps there's a problem with my USB stick? I don't really have any other devices to hand to test the compatibility theory.