A broadcast signal receiving apparatus comprises a tuner configured to be tuned to a locking frequency selected corresponding to a broadcast signal and receive the broadcast signal at the selected locking frequency; a communicator configured to perform wireless communication with an external apparatus through a plurality of channels different in a frequency band from each other; and a processor configured to control the communicator to perform the wireless communication through a channel having less interference between the selected locking frequency and the frequency band among the plurality of channels. According to an exemplary embodiment, the frequency interference with the wireless communication can be avoided in advance in terms of receiving the broadcast signal. Further, image quality can be guaranteed even when the wireless communication is used, in terms of receiving the broadcast signal.