This Panasonic 50" 4K Smart TV (model: TC-50CX400U) drops from $749.99 to $499.99 at Walmart.com. Plus, the shipping is free. This is the lowest price we could find for this TV by $198! This TV has built-in WiFi and Smart TV streaming apps, a 120Hz refresh rate, two HDMI inputs, a 4K display, and more. Sales tax is charged in most states.