Live performances mean that the musical work is performed live. For tv performances this means that the musicians are performing the work on screen. For radio performances this means a live performance of the work, either in studio or on stage. This also includes recorded live performances, but only for the first broadcast of each performance.
Only the first broadcast of a live performance will be distributed in this category. Any subsequent broadcasts will be distributed as mechanical performances.
All other radio/tv performances will be distributed as mechanical performances.