The first actual Met broadcast was on December 25, 1931, a performance of Hansel and Gretel. The first few years of broadcasts were sporadic at best but by 1935-1936 the Saturday matinees were being broadcast on a regular basis. The unfortunate thing is that not all of the broadcasts have survived. They were all recorded on 16 inch transcription discs professionally for the purpose of rebroadcasting at a later date. When in the 1950's reel-to-reel tape began to be used, the archivists threw out most of the transcription discs to make room for the tape storage. Precious performances [Ponselle's Norma Act II, a complete L'Africaine with her as well as the complete Don Giovanni with Ponselle, Schipa, and Pinza (excerpts exist), Aida with Rethberg and Lauri-Volpi,etc.] have been lost forever. The few precious performances that do survive are amazing and have been circulated for years in collector's circles.