I've owned several lcd tvs and several tv boxes. A big problem with smart tvs is the difference in lifetimes between the two.
Tv boxes have a maybe 3 year lifetime before they get kind of junky. Lcd tvs go at least 5 years, sometimes much longer.
If you have a smart tv, around year 3 or 4, you're going to want to hook up a (new) tv box, but you're still going to have to fight the built in OS anyway, at least a bit.
Economics of ads subsidizing the tv aside, it makes more sense to have the tv firmware be focused on the essentials like responding to user input quickly and if it has a tuner not locking up on poor or malformed signals, and the user can choose between the tv box ecosystems they like.
Separately, it'd be nice if the tv box ecosystem got some more longevity... Maybe that will happen soon. 4k@60fps with dolby vision and/or hdr10+ seems like a likely plateau of streaming video for a while... if they'd start regularly putting in 1g ethernet to handle peak bandwidth of 4k BluRay rips, things would be pretty good. 8k seems unlikely to get mainstream adoption (but I could be wrong)
Tv boxes have a maybe 3 year lifetime before they get kind of junky. Lcd tvs go at least 5 years, sometimes much longer.
If you have a smart tv, around year 3 or 4, you're going to want to hook up a (new) tv box, but you're still going to have to fight the built in OS anyway, at least a bit.
Economics of ads subsidizing the tv aside, it makes more sense to have the tv firmware be focused on the essentials like responding to user input quickly and if it has a tuner not locking up on poor or malformed signals, and the user can choose between the tv box ecosystems they like.
Separately, it'd be nice if the tv box ecosystem got some more longevity... Maybe that will happen soon. 4k@60fps with dolby vision and/or hdr10+ seems like a likely plateau of streaming video for a while... if they'd start regularly putting in 1g ethernet to handle peak bandwidth of 4k BluRay rips, things would be pretty good. 8k seems unlikely to get mainstream adoption (but I could be wrong)