Philips 56PFL9954H/12B User Manual page 174

4.2.4 Digital reception quality
If you receive digital TV broadcasting (DVB) from your
own antenna (DVB-T) or use the TV tuner to receive digital
cable channels (DVB-C), you can verify the quality and
signal strength of a channel.
If the reception is poor, you can reposition your antenna
to try to improve the reception. For best results, contact a
specialised antenna installer.
To verify the reception quality of such a digital channel,
select the channel, press h > Setup > Installation >
Channel installation > Reception test > Search and press
OK.
The digital frequency is shown for this channel.
If the reception is poor, you can reposition your antenna.
Select Search and press OK to verify the signal quality of
this frequency again.
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