Hi!
I tested NGUI sample(Example 0 - Control Widgets.scene) in android tv.
When i try to click NGUI control with mouse on android tv, nothing happlens.
Unity GUI doesn't also work there in android tv from Unity 4.5 (It's working in 4.3.4)
So if you want to check, i recommend to build in unity 4.3.4.
Or if you could give me hint, i will also check by changing the script.
Thank you,
Best Regards,
Adam.