While smartphones regularly threaten to get more expensive every year, somehow the market for set-top boxes and HDMI dongles is dropping to seemingly impossible lows. When we were introduced to the Chromecast with Google TV last year, with 4K HDR support and the full capabilities of Android TV, it felt like a $50 gadget would be the best we could ask for. As it turns out, a new contender with similar specs and an even lower price has come from an unlikely source: Walmart... And it's pretty damn good.

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