Broadcast receiving device and method

A broadcast receiving device and method are provided. The broadcast receiving device includes a receiving unit which selects a channel and receives a first broadcast signal that includes a plurality of frames, a signal processing unit which processes the first broadcast signal, a control unit which controls the receiving unit to select another channel when a channel change command is input, a communication unit which receives from an external device at least one reference frame used to decode a frame, which corresponds to a time when the channel change command was input, from among frames of a second broadcast signal received from the another channel, and a storage unit which stores the at least one reference frame. When the channel change command is input, the signal processing unit decodes the frames of the second broadcast signal by using the at least one reference frame.