<prompt> NTSC yakasarudza mitsara ye525 sekugadzirisa pakati peRCAs 441-scan line standard yatove ichishandiswa neRCAs NBC TV network uye Philcos uye DuMonts chido chekuwedzera nhamba yemitsara yekuongorora kuti isarudze pakati pe605 ne800 yakakurudzirwa. Chiyero che 30 mafuremu mifananidzo pasekondi, inosanganisira mitsara miviri yakaiswa pakati peminda yevatema nemachena yakavakirwa pakurudziro ya1936 yakaitwa neRadio Manufacturers Association RMA. NTSC yakasarudza mitsara ye525 sekugadzirisa pakati peRCAs 441-scan line standard yatove ichishandiswa neRCAs NBC TV network uye Philcos uye DuMonts chishuwo chekuwedzera nhamba yemitsara yekuongorora kuti isarudze pakati pe605 ne800 yakakurudzirwa.  <response>: Makumi mashanu nemashanu 