"Night Tracks" was the main program, composed (until 1989) of two three-hour blocks of music videos. On Friday the program normally began at 12:05 AM Eastern Time/9:05 PM Pacific Time and ran through the night until 6:00 AM ET/3:00 AM PT. On Saturday the two blocks were repeated, but in reverse order. (This was done partly because sporting events programming such as "Braves Baseball on TBS" and "NBA on TBS" ran overtime into the "Night Tracks" timeslot. On those nights "Night Tracks" would end before the entirety of block two had been aired.)