It all depends on the capabilities and desires of the owner of the device.
Samsung presented at the electronics exhibition CES 2019 The Wall modular TV. It is assembled from individual blocks and, in theory, can be of any size. At the presentation the company showed a prototype with a diagonal of 219 inches.
Each unit is made using MicroLED technology, which uses LEDs of several microns in size. The Wall supports 8K-resolution and can “upscale” (increase) 4K-picture, eliminating artifacts using artificial intelligence. It is unclear when the TV will go on sale and how much it will cost.