It's the last day of Amazon's four-day Prime Day event, and if you haven't pulled the trigger on an OLED display, now is the time.Shop Amazon's full Prime Day saleAs TechRadar's deals editor specializing in TVs, I've been very impressed with this year's offers, thanks to record-low prices I haven't seen since Black Friday. You can save up to $1,600 on best-rated OLED TVs from brands like Samsung, LG, and Sony.The best Prime Day deal by far is LG's 65-inch C5 OLED TV on sale for $1,099.99, which is a whopping $1,600 discount and a new record-low price. The LG C5 is TechRadar's best-rated TV; it delivers an exceptional picture experience, impressive gaming features, and a comprehensive smart platform.Keep in mind that Amazon's Prime Day ends tonight at Midnight, which means you have hours left to score a gorgeous new OLED display at a must-have low price. You must be an Amazon Prime member to gain access to today's deals, and if you aren't already a member, you can sign up for a free 30-day trial.Ending soon — the best Prime Day OLED TV dealsThe LG C5 is the ultimate all-around TV, delivering excellent performance for movies, gaming, and sports with a full suite of features and superb picture quality. The 65-inch model has dropped to $1,099.99 for Prime Day, which is the lowest price we've ever seen.View DealSamsung's S90F OLED TV earned five stars in our review, and, though smaller, the 48S90F shares all the same excellent features. Now Amazon has it at a huge $600 discount. The S90F OLED TV delivers an outstanding picture, thanks to quantum dot OLED technology and Samsung's NQ4 AI Gen3 processor. You're also getting extensive gaming features and Samsung's impressive Tizen operating system.Read our Samsung S90F OLED reviewView DealSony's 55-inch Bravia XR8B OLED TV is getting an impressive $500 discount, bringing the price down to a record low of $998. Sony's Bravia 8 features a sleek, slim design, a wide viewing angle, brilliant images with deep contrast, and cinematic sound across the entire screen.View DealIf you've been holding out for a premium World Cup TV upgrade, this deal on the Samsung S95F 55-inch might be perfect. Dropping to a record-low $1,597 at Best Buy, the S95F's bold colors, high brightness and brilliant anti-reflection screen make it a prime companion for the World Cup. View DealShop more of today's best Prime Day dealsAmazon Devices: Fire Sticks & Echo from $18Amazon Haul: viral gadgets, tech & appliances from $1.99Apple: MacBooks, AirPods & AirTags from $29Back-to-school tech: 48% off laptops, headphones & tabletsCheap TVs: Samsung, Sony & LG from $89.99Headphones: 50% off Beats, Bose & SamsungLaptops: Apple, HP & Dell from $199Smartwatches: up to $250 off Garmin & AppleVacuums: Dyson, Shark & Bissell from $34