Costco Wholesale has for their Costco Members: 55" TCL 55S403 4K UHD HDR Roku Smart LED HDTV on sale for $349.99.
Refresh Rate: 120Hz ClearMotion
4K UHD, HDR 10, Roku Smart + WiFi
1x Digital Optical Audio
Sale price valid until 4/14.
Picture of in-store price and stock:
Purchase with Citi Costco Credit Card and get 2 + 2 Extended Warranty:
2 year Warranty (1 year Manufacturer + 1 year Costco Concierge) + 2 year Warranty (Costco Concierge)
Add an additional 3 year Squaretrade Warranty for $34 after taxes and receive a total of 7 years warranty.
In case you're curious if it will fit in your car, the box is 55 x 33.5 x 6.5 Make sure your backseat can come down and give adequate access from the trunk.