Samsung SEPA920WSAQST - Manual (Page 175)

Section 2K: Using Your Phone’s Built-in Media Player 153
Me
dia Player
12. Can I surf to a different channel while I am playing a clip?
Yes; while you are playing a clip, you can use the up and down
navigation buttons to surf to a different channel. A small pop-up
screen will appear that tells you which channel you are watching as
well as other channels you have access to. Use the navigation
buttons to scroll through the different channels. Once you find a
channel that you want to watch, scroll to it and press
(or
simply wait approximately three seconds) and the channel will begin
loading.