“Live From The Metropolitan Opera” premiered in 1977. These programs were broadcast live from NYC on PBS in the United States. This is important to me personally because I watched the premier episode (I think it was in March). The wonderful production of “La Bohème” with Luciano Pavarotti and Renata Scotto, with James Levine conducting is the very event that converted me to an opera lover – something that continues to this day.
In the 21st century, the Met Opera broadcasts about a dozen Saturday matinee performances per year live in HD to movie theaters. Later, videos of the movie broadcasts are made available to local PBS stations.