Apple TV/FM Radio System - Manual (Page 89)

Programming channels
Your TV tuner card can receive channels picked up by your
antenna connection (channels 2 through 69) or cable service
connection (channels 1 through 125).
You can make changes to the list of channels that are
available with a particular connection. First, you choose a
connection; then you can edit the channel list for that
connection.
Choosing a connection (antenna or
cable service)
To choose a connection so that you can edit its channel list,
follow these steps:
1 Choose Channel Setup from the Setup menu.
The Channel Setup window appears, with the channel list in
a scrollable box.
82 Chapter 6