Reginald Aubrey Fessenden
Professor Reginald Fessenden, Canadian inventor
1906 Received wireless telegraph signals in Scotland from Massachussetts with the expenditure of less than 1kW of electrical energy[1]
1906 Christmas Day: broadcast the first radio programme, including his own violin performance of "Oh Holy Night", from Massachussetts; a few people heard it along the US Atlantic coast [2]