Your both wrong, conflating standards from the world of cinema and broadcast. 4k (a cinema format): 4096x2160 2k (a cinema format): 2048x1080 UHD (a broadcas

Your both wrong, conflating standards from the world of cinema and broadcast. 4k (a cinema format): 4096x2160 2k (a cinema format): 2048x1080 UHD (a broadcast format): 3840x2160 HD (a broadcast format): 1920x1080 UHD also includes 7680x4320 *HD also includes 1280x720