Broadcast receiving device for displaying closed caption data and method thereof

A broadcast receiving method, comprising:

• receiving a composite video signal;
• signal-processing the composite video signal and converting the composite video signal into an output format signal;
• detecting closed caption data from the composite video signal;
• calculating a noise level of the composite video signal;
• comparing the noise level and a threshold level;
• and
• inserting the closed caption data in the output format signal if the noise level is less than the threshold level.

A computer program embodied on a computer-readable medium for outputting broadcast data, comprising:

• a first set of instructions for controlling a signal receiving part for receiving a composite video signal;
• a second set of instructions for controlling a signal processing part for signal-processing the composite video signal and converting the composite video signal into an output format signal;
• a third set of instructions for controlling a caption data detecting part for detecting closed caption data from the composite video signal;
• a fourth set of instructions for controlling a noise calculating part for calculating a noise level of the composite video signal;
• a fifth set of instructions for comparing the noise level and a threshold level;
• and
• a sixth set of instructions for inserting the closed caption data in the output format signal if the noise level is less than the threshold level.