Hello petediscrete and thank you for the reply
I am not sure what you are saying. That the picture quality will be better if i connect via a client over the network rather than my current setup which has my raspberry pi and the tv hat connected directly to my tv using a hdmi lead with libreelec and vdr installed on the sd card to provide the tv picture directly to my tv. As far as I can tell my cpu and memory even on a Raspberry pi 3B+ are well under utilized.
I am not knocking the raspberry pi (I have 4) or the tv hat, just my expectation to see if any computer peripheral (tuner) can match or preferably better the quality of a tv that was purchased 14 years ago and admittedly cost £1800.
Is the general consensus that a tv tuner built into the tv just more tuned to provide better picture quality than an added component or genuinely am i doing something wrong?