A watan Maris na 1941, kwamitin ya ba da ka'idojin fasaha don talabijin na baki da fari wanda ya gina a kan shawarar 1936 da RMA (Radio Manufacturers Association) ya yi. Ci gaba na fasaha na fasaha na gefen gefen gefen gefen ya ba da damar samun damar kara girman hoto. NTSC ya zaɓi layin bincike 525 a matsayin sulhu tsakanin RCA na 441-scan line standard (wanda aka riga aka yi amfani da shi ta hanyar RCA na NBC TV network) da kuma Philco da DuMont na son ƙara yawan layin bincike zuwa tsakanin 605 da 800.
sauyawar mitar (FM)