TCL has announced the latest generations of its 5- and 6-series TVs. The former has upgraded to QLED in 2020, whereas the latter now has high-end, high-density mini-LED backlighting. Both new lines have 4K resolutions and have up to 75-inch options.
https://www.notebookcheck.net/TCL-introduces-its-2020-5-and-6-series-Roku-TVs-as-4K-HDR-QLEDs-that-start-at-US-400.485171.0.html