I find the headline to be seriously clickbaity, as the word "smart" (in the context of TVs) generally refers to a network connection that facilitates streaming, telemetry, ads, etc. but TFA is not discussing that category of features whatsoever. It's discussing features totally unrelated to the growing popularity of disabling "smart TV" features for the sake of privacy and fewer ads.
Unfortunately, I don't know that there's a generic non-jargon word for this collection of settings, but let's not solve for that by overloading the word "smart"!
Not too jargony, but it possibly conflates the regular calibration settings (brightness, contrast, etc.) which are actually worth tweaking because they let you get closer to the original signal. The settings this article discusses generally let you stray farther from the original signal.
Attend a CES and you'll see this use of "smart" is standard in the TV industry. They had net connections before they had special apps and the word "smart" wasn't used back then.
So if I asked enough industry people at CES what makes a smart TV smart, ultimately I would more often hear about things like motion interpolation than things like network connectivity?
Unfortunately, I don't know that there's a generic non-jargon word for this collection of settings, but let's not solve for that by overloading the word "smart"!