बेल टेलिफन कम्पानियाबो 7 एप्रिल आरो 23 मे , 1927 आव गावनि आनजादसालियाव टिभि स्टेसन निउवर्काव गोबां नायगिरिफोरनि सिगाङाव फोसावदोंमोन ।
Bell telephone company had transmitted its experimental TV station in the front of a large audiences in New York on 7 April and 23 May , 1927 .