Os copio y pego una forma que comentan en XDADeveloper para poder instalar algunas apk sin ser root, creo que puede ser interesante, al parecer con este sistema se te considera developer y tienes menos restricciones :

Installing non-root APK's
Installing non-root APK's on a philips TV is very easy

1. Goto Settings -> Android Settings
2. Goto About -> build
3. click "Build" 7x times; you're now a developer
4. Goto Personal -> Security and Restrictions and enable "Unknown Sources" (set to ON)
5. Use "Airshare" to upload any non-root APK
Thats it....have fun!!