An electronic apparatus comprising: a tuner configured to receive a broadcast signal, demodulate the received broadcast signal, and output a resulting program signal; a recording module configured to record a program; a reservation setting module configured to manage reservation information for recording the program and to assign arbitrary identification information to the reservation information; and a recording controller configured to correlate the program with the identification information and record the program based on the reservation information, wherein: the reservation setting module is configured to manage the reservation information based on program information of a trigger program for specifying a program series, wherein the recording controller is configured to change first identification information which is correlated with a first program of a first set of programs which have been already recorded to second identification information which is correlated with a second program of a second set of programs which are recorded in the future, the first and second set belonging to the program series specified by the trigger program, when the program information of the trigger program indicates that the trigger program was recorded by using a program series reservation method, and wherein the recording controller is configured to control displaying the first set of programs and the second set of programs as a same group. a tuner configured to receive a broadcast signal, demodulate the received broadcast signal, and output a resulting program signal; a recording module configured to record a program; a reservation setting module configured to manage reservation information for recording the program and to assign arbitrary identification information to the reservation information; and a recording controller configured to correlate the program with the identification information and record the program based on the reservation information, wherein: the reservation setting module is configured to manage the reservation information based on program information of a trigger program for specifying a program series, wherein the recording controller is configured to change first identification information which is correlated with a first program of a first set of programs which have been already recorded to second identification information which is correlated with a second program of a second set of programs which are recorded in the future, the first and second set belonging to the program series specified by the trigger program, when the program information of the trigger program indicates that the trigger program was recorded by using a program series reservation method, and wherein the recording controller is configured to control displaying the first set of programs and the second set of programs as a same group. the reservation setting module is configured to manage the reservation information based on program information of a trigger program for specifying a program series, wherein the recording controller is configured to change first identification information which is correlated with a first program of a first set of programs which have been already recorded to second identification information which is correlated with a second program of a second set of programs which are recorded in the future, the first and second set belonging to the program series specified by the trigger program, when the program information of the trigger program indicates that the trigger program was recorded by using a program series reservation method, and