Walmart offers the JVC 65" 4K Flat LED Ultra HDR Smart Television with Chromecast, model no. LT-65MA875, for $549.99. Opt for in-store pickup to avoid the $49.97 shipping fee. That's tied with our mention from a week ago and the lowest price we could find now by $450. Features include:

3840x2160 (4K) native resolution

WiFi & Bluetooth

built-in Chromecast (with access to Netflix, YouTube, Hulu, more)

3 HDMI inputs, USB