An operating method of a TV, the method comprising: receiving a multi screen enter command according to a user input; transmitting a multi screen request signal to a server in response to the multi screen enter command; receiving a multi screen response signal corresponding to the multi screen request signal transmitted through a first channel, which is generated for receiving the multi screen response signal, from the server; entering a multi screen mode according to multi screen information included in the multi screen response signal; and storing the multi screen information, wherein the multi screen information comprises at least one of information on the number of multi screen configuration areas configuring one screen, size information on each of a plurality of multi screen configuration areas, and program information outputted in each of the plurality of multi screen configuration areas, characterized in that the step of the receiving a multi screen enter command comprises: performing a channel change according to a user input, and recognizing a case where the number of channel changes exceeds a predetermined number when channel change is repeated between a plurality of channels or a case where a time that one channel is maintained exceeds a predetermined time when channel change is repeated between a plurality of channels as the multi screen enter command, and the method further comprising: performing a channel selection according to a user input; determining whether a program genre provided through the selected channel is identical to a predetermined genre; when the program genre provided through the selected channel is identical to the predetermined genre, determining whether a program having the same genre as the program provided through the selected channel is provided from another channel other than the selected channel; when there is another channel providing a program having the same genre as the program provided through the selected channel, recommending a multi screen mode viewing; and entering a multi screen mode according to a user input. receiving a multi screen enter command according to a user input; transmitting a multi screen request signal to a server in response to the multi screen enter command; receiving a multi screen response signal corresponding to the multi screen request signal transmitted through a first channel, which is generated for receiving the multi screen response signal, from the server; entering a multi screen mode according to multi screen information included in the multi screen response signal; and storing the multi screen information, wherein the multi screen information comprises at least one of information on the number of multi screen configuration areas configuring one screen, size information on each of a plurality of multi screen configuration areas, and program information outputted in each of the plurality of multi screen configuration areas, characterized in that the step of the receiving a multi screen enter command comprises: performing a channel change according to a user input, and recognizing a case where the number of channel changes exceeds a predetermined number when channel change is repeated between a plurality of channels or a case where a time that one channel is maintained exceeds a predetermined time when channel change is repeated between a plurality of channels as the multi screen enter command, and performing a channel change according to a user input, and recognizing a case where the number of channel changes exceeds a predetermined number when channel change is repeated between a plurality of channels or a case where a time that one channel is maintained exceeds a predetermined time when channel change is repeated between a plurality of channels as the multi screen enter command, and the method further comprising: performing a channel selection according to a user input; determining whether a program genre provided through the selected channel is identical to a predetermined genre; when the program genre provided through the selected channel is identical to the predetermined genre, determining whether a program having the same genre as the program provided through the selected channel is provided from another channel other than the selected channel; when there is another channel providing a program having the same genre as the program provided through the selected channel, recommending a multi screen mode viewing; and entering a multi screen mode according to a user input. performing a channel selection according to a user input; determining whether a program genre provided through the selected channel is identical to a predetermined genre; when the program genre provided through the selected channel is identical to the predetermined genre, determining whether a program having the same genre as the program provided through the selected channel is provided from another channel other than the selected channel; when there is another channel providing a program having the same genre as the program provided through the selected channel, recommending a multi screen mode viewing; and entering a multi screen mode according to a user input.