Walmart has 58″ Samsung UN58RU7100 4K UHD HDR Smart TV (2019 Model) on sale for $348 (add to cart to see price). Shipping is free or select in-store pickup where available.
Specs:
Resolution: 3840×2160
Refresh Rate: 60Hz w/ Motion Rate 120 technology
HDR10 HDR10+ HLG Support
Smart TV works w/ Google Assistant & Amazon Alexa
Ports:
3x HDMI
2x USB
1x Ethernet
1x RF Input
1x Digital Audio Out (Optical)