What is it 2017? TCL is actually the largest manufacturer of TV's in the USA. Sony is no longer considered a big player in the market, Samsung is competitive, LG less so and Vizio WAS competitive. BTW, GU, Vestel has actually been the biggest maker/seller of TV's in Europe for at least 5 years now when one considers all the "mass" names from yesteryear, or they produce under licenese that they gobbled up and sell under...........Telefunken, Firstline, Finlux, Techwood, Luxor, PANASONIC, TOSHIBA, HITACHI and several other names.

Never ever buy the newest bell and whistle. OLED is that, it is dark and as stated above has burn in problems. I remember a decade ago when "3D" TV's cost $500 more across the board, the technology added to make them "3D" was a $3 difference in the manufacturing cost, and then they rolled it out wide, without the mark-ups and now it has mostly disappeared. Similarly for 1080p before that and 4K after that (i.e. almost all TV's over 37 inches are 1080p now, and the vast majority of TV's, especially those over 42 inches are now 4k) these are now standard things that do not cost a premium. Seriously, when people were first dropping $2000 for 4K TV's, there was almost no content for them for 5 years, and then when there was, there was no longer a price differential, in fact they became cheaper and at bigger sizes.

If you go for the TCL 55 inch, there seems to almost always be a sale somewhere where you can grab a 55 inch TCL (normally ROKU ones) for around $300. Just get one of those, and you will be more than happy. By the time you might actually need any bell and whistle that Samsung has on its high end TV's - assuming that the bell and whistle "sticks" as most bomb (looking at you curved LED, 3D, Ambient light, and another dozen dumb ones that I cannot recall at the moment), you will find that TCL, Hisense, Vizio and the like will also be selling that bell and whistle for a much lower price.