Broadcast receiver and tuner control method therefore

A broadcasting receiver having a plurality of tuners and a function capable of simultaneously displaying a first broadcasting signal and a second broadcasting signal respectively on first and second areas into which a display screen configured to be divided, the broadcasting receiver comprising:

• main and sub tuners configured to convert RF signals selected among a plurality of RF signals received from an antenna into IF signals and amplify the IF signals;
• main and sub demodulators configured to demodulate the IF signals from the tuners to output video signals;
• and
• an interference controller configured to store PLL data used to control oscillation frequencies to select specific channels and read corresponding PLL data selected to reduce interference caused by a channel frequency of the main tuner and write the corresponding PLL data in the sub tuner when a broadcasting signal output by the sub tuner is not displayed.