Samsung UN46ES7500F E-Manual page 515

3. Using the touch pad, highlight the channel
in the list you want, and then press the
touch pad.
You can also change the channel by
N
touching the up or down channel icon on
the touch pad. If you touch the touch pad
immediately after, the TV displays the list
of memorized channels. Select a channel
by moving or flicking your finger up or
down, and then pressing the touch pad.
If you change a channel by entering the
N
channel number, that channel number is
memorized and added to the
list automatically. You can change the
channels using a memorized channel list
Added Ch.