Formally? Unambiguously, CCIR System M is the international formal designation for the US* format of the signal. It does not state what color format it uses - P

Formally? Unambiguously, CCIR System M is the international formal designation for the US* format of the signal. It does not state what color format it uses - PAL-M (in Brazil) is such a frankenstein format that is not seen anywhere else - but domestically-speaking, NTSC (is confusingly) both the B&W and the backwards-compatible color format, and if someone didn't bother to change the name to ATSC (A standing for Advanced, not American), we could have NTSC Digital 3.0 instead. NTSC (National Television Systems Committee) is the committee which formulated these standards, they didn't bother to put a more proper name to their inventions like SCART's (the association, see below) SECAM and Telefunken's PAL have, or in the digital domain EBU's DVB and ARIB's ISDB. (SCART is another one of these btw, it means Syndicat des Constructeurs d'Appareils Radiorécepteurs et Téléviseurs (Radio and Television Receiver Manufacturers' Association) and it was supposed to be called péritel (insert IBA ENG video discussing SCART) but the name stuck.) * And Canada and...