The AOC TV that I was mentioning was 40LEA1330. Basic LED without 3D.
I compared with 'standard' picture mode against a 2013 Sammy F5000 and LG 6410, side-by-side. It was in a showroom in Kakinada.
As mentioned previously, I had compared SD & HD content - TataSky channels and my own TV/movie rips - avi, mp4 and mkv, with file sizes 150MB to 4GB. Episode of Modern Family, one lecture, Harry Potter Prisoner of Azkaban, Transformers - 2, The Dark Knight.
The AOC was a step lower than the LG (which is much more expensive) but blew away the Sammy. I for one would never buy the Sammy Series 5 when I have the very much cheaper option.
I also spoke to the AOC service guys, they were very polite & positive when answering queries. Sammy customer care was also positive when I spoke to them.
AOC service confirmed the 3 year comprehensive warranty. Was quoted 38k (open for reasonable negotiation). Sammy was ~50k with one year warranty.