How about the failure rate and warranty?
Never had Panasonic thing in my life. Sony can be more trusted than Panasonic.
Well...there are plenty of members here who have Panasonic tvs...I am sure they'll let u know better. Regarding panel faluire rates, u'll find number of Sony, Samsung, lg etc all failing prematurely...so essentially in terms of reliability I don't think any of the tvs brands is better or worse then the other. All are equality good or bad when it comes to reliability.
Mind you, if u are concerned about faluire, Panasonic is the only one giving you a standard 3 yr warranty compared to Sony,Samsung, Lg's 1 yr warranty.
So there you go...if Panasonic was so bad...they would never give u a standard 3 yr warranty.
There are tons n tons Of members here with Panasonic tvs n swere by them.
Both are Japanese manufacturers and both the brands forte has been televisions since ages.
Yes, I know in india sony is just overhyped, I am not saying that it doesn't make good tvs, it does I too have one...but there are other brands which make equally good products or even better.
Just because u dont own one or never have, doesn't make Panasonic inferior to Sony, I too have never owned a Panasonic tv.
Just go through the threads like I told you, you will find plenty of threads on Panasonic n plenty of members who have recently oughtn't the 42E6 over a Sony W650/670 .
Regarding how good or bad this particular tv is...the E6 nn clear any doubts you have about Panasonic. Just go through these links n there is a also complete thread on this forum on the E6, the title is "is E6 the best LED by Panasonic".
Panasonic TX-L32E6B review from the experts at whathifi.com
Panasonic TX-L42E6B/ TX-L42E6 (E6) Review
Best TVs to buy in 2013 | whathifi.com
Panasonic TX-L39E6 review - TV - Trusted Reviews
Panasonic TX-L32E6B review (TX-L39E6B, TX-L42E6B, TX-L50E6B) | Expert Reviews
The first 2 links are considered to be the most genuine n widely accepted from whathifi magazine n the very technical HDTVtest.