At this time, there isn't much 8K resolution content which is easily available.
In the near future, the first widely available native 8K content might very well be some video games.
In the case of broadcast television such as the news, the transition to native 8K or higher will likely be highly dependent on whether the camera companies are able to manufacture newer 8K+ camera models at a "commodity" price (relatively).
My thinking behind this, is asking why was the...
Back in the day, the tv screen could last over 25+ years outright before dying. A few of my relatives were still using mid-late 1970s era color tv screens until the early-mid 2000s when their tvs finally died.
In more recent times, my tv screens typically died when the power supply went kaput...
I'm guessing the initial batch of 8K screens, will be backwards compatible with older HDMI running at standard HD or 4K resolutions. Otherwise Joe Sixpack will be returning such "defective" tv screens to the retailer, and complaining that it doesn't play anything.
A better question is whether Joe Sixpack or Jane Q Public even knows what an 8K screen is.
Once 8K screens become common and all Joe Sixpack has to do is just plug in the cable box / streaming device via an HDMI cable, will they even know that they are on an 8K screen?
Even on youtube when I'm listening/watching to a music clip, or content which doesn't have any interesting video such as video feeds from live podcasts, lectures, seminars, news, etc ... I deliberately set the video resolution to 240p or even 144p.
"Not interesting video" is stuff like an...
I'm still on standard 1080p HD screens, until my tv dies and I have to buy a new screen. 1080p screens are not available anymore.
By the time my tv dies, who knows. It might already be common 8K by then?
A next generation of video game consoles, might very well drive the consumer market for higher resolution screens once LG / Samsung (or somebody else) has got the manufacturing process down to a commodity science.