airshift means A block of continuous broadcast time, often four or six hours.
Etymology
From air + shift.
noun
- A block of continuous broadcast time, often four or six hours.“Announcer respondents most frequently worked a daily four-hour airshift (M = 4.23, s = 1.28; Mo = 4) , as either a morning daypart announcer (n = 60) or as an afternoon daypart announcer (n = 34)”