Kathrein Euroline UFE 370/S - Manual (Page 14)

Operation
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You can also view the details directly while the current programme is
running by pressing the red button. You then see the information you
need about the current TV programme without having to switch to EPG
mode (see screenshot).
Note: To be able to view the programme information you must leave the
programme in question on for a few moments.
If you press the red button while the current programme is running,
you are switched to "Advanced mode". This displays details on the
current programme. You can still view the programme in the
background.
Audio
Press the Audio button to view the sound mode (TV or radio) being
broadcast over the receiving channel.
Select the sound mode and press the OK button to save it. If the
channel is not transmitting language information the receiver shows
«Unknown». Switch between Left/Right/Stereo sound using the
SOUND button.
Pause and Zoom
With these buttons, the picture can be reduced in size or frozen.