BROADCAST SIGNAL RECEIVING APPARATUS AND CONTROL METHOD OF THE SAME AND BROADCAST SIGNAL TRANSMITTING APPARATUS

A broadcast signal receiving apparatus including: a communication interface which receives a broadcast signal of a variable channel group including at least one channel selected from among a plurality of channels optionally included in the broadcast signal; a memory which stores tuning information corresponding to the at least one channel; and a controller configured to request current tuning information corresponding to a current at least one channel of the variable channel group currently included in a current broadcast signal, wherein the stored tuning information does not correspond to the current at least one channel, receive the current tuning information corresponding to the current at least one channel, store the received current tuning information in the memory, and receive the current broadcast signal of the current at least one channel based on the stored current tuning information in response to receiving a command to view the current at least one channel