Which TV brand is "better" is an issue you don't want to tackle.. I expect that some who are complaining the most bitterly, have people at home running their TV 24/7. with possibly the TV tucked into the worst ventilated corner of the room.
As for my choice of brand, whichever promo / leader Best Buy has on sale Black Friday, is what goes into the back of my Jeep. I haven't worn one out yet, but then I live by myself. I cruise along with a paltry daily TV time of from about 8:00 PM to 3:00 AM the next day. If you're counting, 7 hours a day during the week, with the TV getting more time off on the weekend for "good behaviour".
Right .... some of the Insignia /Dynex and Toshiba-Compal /Sharp-Hisense exclusive Best Buy product TV's are not bad at all for the spend and have plausible pictures .
I have one real decent 40" Best Buy Insignia 2012 CCFL /LCD .with the
same exact real decent Samsung SPVA 450 NIT,cd/m2 5000:1 contrast CCFL LCD panel the spendy same size Sony LCD used that year . noting Hisense has been making the Best by Insignia/Dynex more recently and all the Sharp TV's with various panels and they seem to be OK for the spend like the Comal-Toshiba they have
OTOH for my primary TV I been buying Sony XBR and Sony XBR WEGA since 1993 with an XBR 1080p Grand Wega SXRD in 2005 and I got rid of it for my first and better Plasma before the bloody thing got the dreaded SXRD yellow screen or green slime a lot of those had .
OTOH outside of those Sony SXRD bad experiments You can sometimes leave a good Sony XBR LCD old CRT on nearly 24/7with a maybe a weekly thermal break for a few hours for maybe nearly a five years or decade sometimes and it will be fine when you get rid of it but don't try that outside of a tier one brand like Samsung ,LG or Sony XBR >>>>
NOT with a Sony straight Bravia TV or any of cheap ones from LG and Samsung.
The average
MTBF (mean time between failure ) of an LCD TV panel to 1/2 brightness 24/7 is 5 years continuous duty and any set or panel can fail at any time .
FWIW Sony TV sells the mid range Sony XBR TV product as Sony Bravia Pro Displays just for commercial /professional venus ,digital signage , hotel/hotel lobbies ,airports , medical/dental office and so on and so on with some different software and that implies 24/365 duty cycles at a lot of places which further indicates a very robust thermal design and build quality and parts content like all my Sony XBR TV's have had since 1993 .
I been paying that Sony XBR tax and it's usually spendy but they always have the best pictures by a significant margin to a cheaper TV like a Vizio or a Dynex and so on .
My latest Sony TV in here next to the PC desk on a motion wall mount in my cave is a 2015 4K HDR Triluminos wide color gamut 10 bit panel Sony XBR it's beyond very good with the usual legendary sturdy and solid Sony XBR build quality and meticulous fit and finish second to none with a nice precision and thin blackish metal bezel beyond any other brand TV.
OTOH the spendy LG and Samsung fit and finish arent bad at all and very close to the Sony 4K HDR XBR these days and so are the spitting hairs close spendy Samsung LCD pictures ,
The LG HDR OLED TV is very good in the 2016 superlative range topping realm. I might put a Sony Z1C OLED in here at some point.
My superlative 2013 64f8500 Plasma out front is superb for a 1080p and can humble a lot of 2016 LCD at any resolution but it was spendy also , The rest are a Sony Bravia and LG LED both new in 2013 and TBH the 2013 Sony Bravia is not up to usual Sony standards I'm accustomed to and not the pick of the 1080p litter here .