This TCL 55" 4K TV was already a steal at its usual $400-$450, but they’re basically giving it away at $314. That includes HDR10 support (not Dolby Vision at this price, sorry), built-in Roku software, and the ability to use your phone as a remote.
Source: LifeHacker – 55″ and 4K For 4 – Our Most Popular TV of the Year Is Insanely Cheap Today