A:Answerrtings.com reports that "It comes with 52GB of shared storage, with 46GB free out of the box."
Attached is the screenshot available in their review.
Source: https://www.rtings.com/tv/reviews/tcl/qm8k#test_572
A:AnswerOur QM8K series is available in various sizes up to a 98 inch, and features up to HDR5000 Brightness. Hope this helps! Thank you, TCL Customer Support
A:AnswerThere are various guides that can be found online to help calibrate the TV to best fit your setup and personal preference. Hope this helps! Thank you, TCL Customer Support