Programme dropped with Christmas broadcast (8)
I believe the answer is:
schedule
'programme' is the definition.
(schedule is a kind of programme)
I don't understand the rest of the clue.
(Other definitions for schedule that I've seen before include "List of intended events and times" , "Clues he'd dropped about timetable" , "Agenda" , "List of duties, etc" , "Table of events" .)