From 1971 to 1985, the Indianapolis 500 was shown on a same-day tape delay basis. Races were edited down to a between two and three hour broadcast, and shown in prime time. It was also blacked out in the Indianapolis market until a later date. The broadcasts would typically open with the rendition of "Back Home Again in Indiana", and the starting command, but no other pre-race ceremonies. In addition, the broadcast was supplemented with some pre-recorded, in-depth featurettes, aired during down times. Later telecasts included live introductions at the top and bottom of the broadcast, with the closing segment sometimes an interview with the race winner, which by that time, had been revealed to the viewers. During this period, the announcers' commentary at both the start and finish of the race were recorded as those events transpired. However, the commentary of the middle parts of the race was semi-scripted, and recorded in post-production, and edited into the broadcast as it was being aired.