1) Press the [Menu] button and press the cursor [Up] or [Down] to select [Features] and press cursor [Right].
2) Press the cursor [Up] or [Down] to select [PIP] and press the cursor [Right] and [PIP Size] is highlighted.
Press the press cursor [Left] or [Right] to select the options (such as [OFF],[Small], [Medium], [Large] or [Side-by-Side]).
Or you can press the [PIP] button on the remote control once to display the [PIP] window and repeatedly to toggle through the various PIP screen sizes.
To enable the PIP to function, a HDMI input source must be selected.