QN90a was a hugely sought for TV among a few who felt this was a flagship for LCD/LED technology itself. But many ended up disappointed by its ads panel and dirty screen effect. If QN90b has solved those issues then it is a great choice. More than the burn in fear, OLED is not desirable as a hall TV with direct light reflection sources and its black crushing penumbra (whereas LCD/LED TVs fill in a grey colour tone) and may be odd for the first few days for new buyers. However when you get used to it, it would appear more natural and eye soothing. Also for pan shots of bright backgrounds like snow covered valleys or deserts, wrgb OLEDs might not satisfy the viewing pleasure one gets from a 1000+ nits LCD/LED TVs. But movies or documentaries with black background needs an OLED to get an immersive experience. LCD/LED cannot hold up even if they have a local dimming. Infact blooming gets more noticeable with full array local dimming. Earlier models of OLEDs did not have auto panel refreshing and so chances are some pixels in some areas were getting worn out more than others and so you had to babysit your tv by constantly diversifying content so as to ensure uniformly all pixels were in use. If logos were repeatedly watermarked in one area of the panel, you get jitters. But over the years, the auto pixel refreshing, screensavers, logo luminescence limiter and its brightness limiting algorithms can ensure 100000 hours of usage before picture quality issues arise. LCD TVs can go kaput for other reasons as well in those hours of usage. In electronics nothing is a certainty. But its about time people drop in the fear of permanent image retention. Do you know in modern OLEDs, you can select a "screen off" energy savings mode, if you are leaving for a short break? That feature ensures longer life of the TV. Your voice command with your LG magic remote can enable that in a jiffy. The prevailing urban legend of burn ins is statistically very low to be feared about. Shadow crushing, direct reflexion issues in living room ambient light settings and auto brightness limiter algorithm are more plausible reasons to avoid OLEDs for halls. You can even wait for QD-OLED TVs to drop in prices as they are hailed as the game changing solution for existing issues with TV choosing dilemma.
