Why you want sony only, why not get Samsung, its better than sony and also sony doesn't support many video formats when you plug in a USB drive while Samsung supports almost all formats.
And whats your budget?
And I would like to tell you one thing more that you won't be charged any custom duty if you buy a TV upto 35k, above that also no worries, what can you do is PM me and I will tell you what to do, can't share it here.
Apart from that lets come to the point.
EX720 and NX750 are 3D TVs, so do you want a 3D TV, I don't recommend a 3D as wearing a 3D glasses to watch a TV is really a pain and also the 3D Tvs costs a lot.
And I think EX650 and HX925 models that you have listed hasn't been launched atleast here in India so can't tell you more about it.
So the best option now remained for you is 46HX750
Now lets come to Samsung.
I am not mentioning 3D TVs here.
I will recommend you to buy 46" over 40" because the bigger the better.
46EH500- don't buy it
46D5500-Very good LED TV
46D5000-46D5500 is lil better than this, otherwise its also not bad,if the difference in price in D5000 and D5500 is not much then pick D5500 otherwise D5000.
There have been some recently launched models which are as follows(I haven't seen or compared them and also no reviews are available so can't say anything about them):
46ES5600
46ES6200
46ES6800
46ES7500
46ES8000- well this is the costliest one and this is the one which we see in the latest Samsung Smart TV commercial.
Well this is all I know
