I had decided to buy a 65inch oled tv,either LG C9 OR Sony A8,as my family mostly watches HD DTH,in which channels always displayi their Logos ,which can cause burn in On the OLED screens for prolonged use of logos,,hence,after reading online reviews ,I understand Sony X900F 2018 model,Sony X950 g 2019 models with local dimming & Samsung QLED Q80R & Q70R has been reviewed as similar or near about in contrast & blacks to OLED screens,I would wish to have visioners opinion,who have experience with these tv,s,to suggest their opinion,which of the above mentioned tv,s shall be comparable to oled screens,