| CPC H04N 21/4263 (2013.01) [H04N 5/455 (2013.01); H04N 5/50 (2013.01); H04N 21/25808 (2013.01); H04N 21/42638 (2013.01); H04N 21/4382 (2013.01); H04N 21/4383 (2013.01); H04N 21/44209 (2013.01); H04N 21/4424 (2013.01); H04N 21/4667 (2013.01); H04N 21/6582 (2013.01)] | 13 Claims |

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1. A display device comprising:
a display;
a tuner including a first demodulator and a plurality of radio frequency (RF) Integrated Chips (ICs) which receive a signal through a tuned channel; and
a processor including a second demodulator and configured to lock a channel through each of the demodulators according to a tuning request, process a signal demodulated through a demodulator selected based on a threshold sensitivity value for signal detection individually set in each of the demodulators, and control a video to be output through the display,
wherein the processor is configured to receive a channel change signal, and store log data related to cracking of an output video of a changed channel and channel skipping according to the received channel change signal, and
wherein the processor is configured to analyze the log data, and determine or change a threshold sensitivity value for each of the demodulators based on the analyzed log data, and
wherein the demodulator is selected based on log data information indicating comparison results for demodulator performance in locking more channels.
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