It is a window showing when the songs or slogans are broadcasted and when they will be broadcasted.
It can be reached by the help of popup menü or CTRL+H keys from the windows such as Quick List, Groupped List, Song List, Broadcast List.
It contains 2 tabs.
First tab shows the history of the songs or slogans.
Second tab shows the history of the performer.
You can see which song of the performer takes place by using related button's hint.
Notes:
Which information will be used by Broadcast History depends on the "Default Location" and "History Mode" values in Settings window.