Hi,
Just being looking into updating my android TV to Oreo to get the lastest features because Sony are not going to bring Oreo to the 2015 models of there Android TV.
Is there a legit and clean rom of Oreo which is compatable with my KDL55W800c?
Also how would it affect the current features like the inputs and Sony applications?
Cheers.
Short answer is no.
Android OS is not like windows were you can install it on any hardware.