Program data is provided in association with a main audio program to a
receiver of a duplicative radio broadcasting system wherein a duplicative
broadcast (such as a hybrid IBOC broadcast) includes a primary channel
and a backup channel in a predetermined frequency allocation. Both the
primary channel and the backup channel transmit the main audio program,
and the primary channel transmits program data not included in the backup
channel. The receiver includes an audio output for reproducing the main
audio program and a display for displaying the program data. The method
includes recurrently compiling a program event list of the program data
corresponding to a current program event and a plurality of upcoming
program events. The program event list is recurrently transmitted within
the primary channel. The receiver recurrently recovers the program event
list and stores the program data in a memory. The program data of the
current program event is displayed. The audio output is blended from the
primary channel to the backup channel in response to detection of an
impaired primary channel. The display is updated to show program data of
one of the upcoming program events from the memory during impairment of
said program data in said primary channel.