Good Morning America (often abbreviated as GMA) is an American morning television program that is broadcast on ABC. It debuted on November 3, 1975, and first expanded to weekends with the debut of a Sunday edition on January 3, 1993. The Sunday edition was canceled in 1999; weekend editions returned on both Saturdays and Sundays on September 4, 2004. The weekday and Saturday programs airs from 7:00 a.m. to 9:00 a.m. in all United States timezones (live in the Eastern Time Zone and on broadcast delay elsewhere across the country).
https://en.wikipedia.org/wiki/Good_Morning_America