"I can pretty much assure you that with a 240Hz refresh rate 4K LCD" It depends what you will plug on it. CRT are considered the best solution to play unmodded

"I can pretty much assure you that with a 240Hz refresh rate 4K LCD" It depends what you will plug on it. CRT are considered the best solution to play unmodded old consoles (up to the PS2/Dreamcast/Xbox/Gamecube generation, and even the Wii) or VHS tapes. Games and consoles were made to look good on CRT, and to take advantages of specific features of these TV.