Amazon has the Panasonic W95 Series Mini LED 4K Ultra HD 55" Smart Fire TV (55W95AP) for $600 with free shipping. Features 3840x2160 resolution, 144Hz max refresh rate, HCX Pro AI Processor MKII, Built-in WiFi, 4x HDMI, 2x USB, HDR10+, HDR10, HLG, Dolby Vision IQ.
Amazon has the Panasonic W95 Series Mini LED 4K Ultra HD 55" Smart Fire TV (55W95AP) for $600 with free shipping. Features 3840x2160 resolution, 144Hz max refresh rate, HCX Pro AI Processor MKII, Built-in WiFi, 4x HDMI, 2x USB, HDR10+, HDR10, HLG, Dolby Vision IQ.
$600
Amazon has the Hisense U8 Series 75U8N 75" 4K UHD ULED Smart TV (75U8N) for $940 with free shipping. List price: $1600. Features 3840x2160 (4K) resolution ULED display, Google TV, 144Hz Game Mode Pro, 4 HDMI ports.
Has good Amazon Reviews.