Of course, the QN90D is a much better TV than the TCL Q6. TCL offers 8-series TVs with similar picture quality to the QN90D for $4,000, which is still a lot of money, but much less than the $10,000 or ...
Having removed said soundbar, however, I must say that the Panasonic does sound exceptional in the context of 'a TV' – but it's not got quite the same slap-bang-wallop of a full separates system.