If it's just TV, it's gonna be useless sideways because normal broadcasting will show up in normal aspect ratio making most of the screen just unusable. If it's also monitor though then I don't see why they'd do this, especially since Windows and most OSs can actually have the output rotated, so you can already use pretty much ANY monitor sideways, so unless this has much better viewing angles for all directions compared to current monitors on the market it's gonna flop. Hell, if you wanted a vertical monitor you can just get an ultra-wide monitor instead and mount it sideways, then rotate the output by 90° via the OS and you get a much better experience since vertical monitors are only used at times when you need to fit as much stuff vertically as possible (eg: high level programming where you want as much of the code which only displays vertically visible as possible to avoid making mistakes or cross reference sections).
And don't get me started on the 1600$ price tag... for "millennials"