Fair enough and I agree with your point about network tv and the advertising cash cows. However I will point out that the latest generation Smart TVs do have interfaces for the new cash cow streaming media services and they have them big time.
.
I get your point too. However I just see newspaper, television, music "publishers" and film "production" companies as robber barons of distribution. Streaming services IMO are just late prospectors on a picked out gold field, all of them dying because the internet changes the game. When it comes to hardware, and "smart" TV is just hardware - the manufacturers are at the mercy of consumers. For the most part their revenue stream comes from those that weren't born knowing the internet (I remember the first television broadcasts, but I'm showing my age). My grandkids don't know what MTV is, watch most of their videos on YouTuber, and get their movies from bittorrent - almost all those movies are made for subscription TV. They get their news from blogs and forums and have never bought a newspaper, they buy their music from Google Play - much of it direct from the musicians, and they haven't watched television since they were in primary school. The grandkids are all gamers but mostly they play "app games'' - something else they buy direct from the developers by-passing the distribution monopolies. Only one of my kids owns a television, though they've all got home-built multimedia boxes with TV cards, likewise the grandkids - none of whom have ever owned televisions that I know of. Gunna be hard for those business models to make money from them, and I see the same things happening in Asia, India, Pakistan, Afghanistan and Africa.
So we agree on some things, just not the future of "smart tv". And no, I don't own a "television" (a couple of old analogue TV sets, but there's no signal for them even if I wanted to watch them, though I've got TV cards - which I don't watch, just the recordings (I'm in Australia where television is shit, so I mostly watch HBO, from PirateBay.)
I've got friends who own a chain of electronic shops - they don't sell many TV sets these days... probably because the top end of the consumer market import Yamakasi Catleap big screens that beat the shit out of anything "smart" TV can offer, in price, picture quality and screen real estate. Might be different elsewhere though. The "low-end" of the market, earning less than $100K pa, still buy televisions, and watch daytime TV and "reality" shows - but changes in technology (self-driving delivery vehicles and robots) mean their spending will be increasingly restricted... so I strongly suspect that'll be the final nail in the coffin for content delivery monopolies. "Smart" TV is pretty dumb without content monopolies, and streaming is a content delivery monopoly built on a content delivery/distribution monopoly.