Walmart has the TCL 5-Series 55S531 55" 4K HDR Roku Smart QLED TV on sale for $328 with free shipping. 

• 3840 x 2160 (4K UHD), 60Hz refresh, 80-zone array Quantum Dot LED, HDR Pro Pack w/ Dolby Vision
• 4 x HDMI, 802.11ac, Voice control (works with Alexa/Google Assistant), Auto Game Mode