Since the TV's software/code is not open source and can't be altered then the choice is clear. Return and get a model that does what you need.
I know this is a strange discussion, but everyone has its problems.
I have this model and I'm from Italy.
This tv seems to be an europe warranty model and if I go in menu, system, accessibility, I can't find "vocal guide" that is a feature that allow visual impaired people, like me, to manage the tv with an internal vocal synthesizer.
We tried to change language for the menu, for example from Italian to English, but nothing, the vocal guide doesn't exists.
After contacting my reseller, they say that this is a feature available only on some countries and, since I have an europe product, this feature is not available.
well, really angry!
So what I'm asking you is if it is possible to have on this tv model a vocal guide in any languages, also if it is not italian is good, but at least a language should be included!
The firmware is the latest, since I downloaded it and update.
only a thing, the tv is not connected to internet, due to a problem with my ADSL line, you know, Italy is the worst country on this...
Can you give me some hints?