It was first televised locally in 1939 as an experimental broadcast.

Its first experimental broadcasts under the call sign 2ADD were in 1920.

Preparatory work has been going on throughout the decade, and experimental broadcasts in Japan already feature programming with 1,125 scanning lines.

ESPN2 would also be used for experimental broadcasts and technology.

In 1927 a short wave emitter was installed and were made the first transatlantic experimental broadcasts.

She worked at the Phillips administration office, but was chosen to act as a host for an experimental broadcast in 1935.

Its first episode aired in 1941 as an experimental broadcast.

Swiftly, Grosvenor made a tape recording for an experimental broadcast to the ear radios.

This was exactly 80 years to the date after its first experimental broadcasts.

He recently did an experimental broadcast over the Internet.