I have an older Sony Sony BRAVIA DAV-HDX589W "theater in a box" system. It's DVD only, no wifi, so it's dated. Is it possible to upgrade just the receiver unit to one that supports blu-ray and has wifi for netflix, hulu, etc? The speakers are all fine, I'd rather not buy a new setup, but I'm not familiar with Sony's S-AIR and if the parts play nicely with each other.
Help is appreciated!