Sony BE3 TVs do not allow you to use HDMI signal as PC input. It treats it as a video signal causing fuzzy text and it does not map 1:1 with the set resolution (this is biggest problem with all current Sony LCD TVs
)
VGA will work but wont be as good as HDMI would have been.
All Sony LCDs upto BE2 worked just fine, then sony decided they dont care if people use their TVs as monitors anymore and made this critical change
Otherwise the TV is great for videos and movies. you wont notice any issue playing videos and movies even through PC. Its desktop use (browser, text, basically any 2D desktop work)
This is the reason I stopped recommending BE3 TVs to everyone for desktop use. You can reconfirm this its a 1 line print in manual.
Myself and Shripad both have burnt our hands with BE3 TVs because of this 1 flaw in this television after buying it.