TCL’s 2018 6-series TVs are famous for offering every form of HDR (including top-shelf Dolby Vision) and excellent Roku software in an affordable package, and the 5-series has basically all of the same features, save for a metal body and local LED dimming zones. It still supports Dolby Vision, it still has an advanced Roku remote and app control, and it’ll still look amazing. At a Black Friday price $430 for a 55" (about $40-$70 less than usual), it’s an incredible value. You can also get the 49" for $350, or the 43" for $320.
Really want the 6 Series? The 55" has a modest discount to $630, from the usual $650 as well.