Walmart offers the RCA 50″ 4K LED Flat Ultra HD Roku Smart Television, model no. RTRU5027-W, for $269.99 with free shipping. That’s $429 off and the lowest price we could find.
RCA 50″ RTRU5027-W 4K LED Flat Ultra HD Roku Smart Television features:
3840×2160 (4K) native resolution
built-in Roku TV (with access to Netflix, Youtube, Hulu Plus, more)
4 HDMI inputs