Apple TV/FM Radio System - Manual (Page 100)

Setting and editing TV reminders
You can arrange to have notices appear on your screen to
remind you that specific shows are about to begin.
When the time you’ve set for a reminder arrives, a notice
appears on the screen.
The notice appears no matter which application program
you are using on your computer at the notification time.
If you click OK in this notice, the Apple Video Player
application opens, switches to the proper channel, and
displays the show in the video window.
Setting a reminder
To set a reminder, follow these steps:
1 Choose TV Reminders from the Setup menu.
The TV Reminders dialog box appears.
93 Customizing the TV Tuner Settings