thumb|right|TV receiver E1 (1939)
In August 1939, Nazi Germany introduced the Einheits-Fernseh-Empfänger E1 (i.e. Unitary-TV-receiver E1), also called Volksfernseher (i.e. ''People's TV), a 441-line, 25 interlaced frames per second (or more correctly 50 fields per second) television system. The TV was presented to the public in the 16th International radio exhibition Berlin.
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).