Digital broadcast receiver and method for processing stream thereof

PURPOSE: A digital broadcasting receiver and a stream processing method thereof are provided to reduce power consumption by performing processing for a turbo stream that a user wants. CONSTITUTION: A demodulator(310) receives and demodulates a transport stream. The transport stream includes a normal data stream, a supplementary data stream having a variable coding rate, and coding information about the supplementary data stream. An equalizer(320) equalizes the demodulated transport stream. Decoders decode the supplementary data stream according to the coding rate by using the coding information.