I recently tested the PX748-4K and the brightness is absolutely incredible; even with the curtains open, the 4500 lumens keep the picture crisp and vibrant. If you’re a gamer, the 240Hz refresh rate is a total game-changer for smooth, lag-free motion on a massive scale. It’s a fantastic find for anyone upgrading their home theater who wants high-end specs like HDR and auto-keystone without the usual setup headache.