From an engineering standpoint, TVs are a solved problem. We know how to make very good and reliable ones and we have known for a long time.
But the problem of selling good and reliable TVs (mine is well over 10 years old and still works perfectly) is that you only sell them once, so you don't make a lot of money on them. The way out of this conundrum is #enshittification. You make worse TVs, and you make the owner pay forever instead of paying a one-off. You force the TV to be forever online, use it steal the owner's data and feed them a neverending stream of bad adverts.
We truly live in the stupidiest timeline.
https://arstechnica.com/gadgets/2025/04/cheap-tvs-incessant-advertising-reaches-troubling-new-lows/