Iijacks ze-RCA zidlala indima ebalulekileyo ekunikezeni ukusebenza okufanayo kunye nomgangatho ophezulu we-audio-visual kwiindawo zorhwebo. Iinguqulelo zodidi lwemizi-mveliso zodlula iinketho ezisemgangathweni ngokunika ukomelela okongeziweyo, ukuhanjiswa komqondiso ophezulu, kunye nokuxhathisa ukunxitywa.