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 gaban fasaha na fasaha na gefen gefen gefen gefen ya ba da damar damar ƙara ƙudurin hoto. NTSC ya zaɓi layin bincike na 525 a matsayin sulhu tsakanin RCA's 441-scan line standard (wanda aka riga aka yi amfani da shi ta hanyar RCA's NBC TV network) da kuma Philco da DuMont na son ƙara yawan layin bincike don zaɓar tsakanin 605 da 800 da aka ba da shawarar.
525 na shekara