Digital broadcast receiver

A digital device system, comprising:

• a communication part;
• and
• a television device capable of viewing a digital broadcast, and a number n (n is a positive integer) of recording/reproducing devices capable of recording a digital broadcast and capable of being connected to the television device, and is capable of two-way communication using the communication part between the devices in accordance with a CEC protocol defined in advance between both the devices, wherein
• said television device has a first storage part for storing reservation registration data including viewing reservation information of said television device and recording reservation information of each of said recording/reproducing devices,
• said reservation registration data includes a reservation target device ID, a reservation target program ID, and a reservation target time period,
• the reservation registration data is maintained in said first storage part at least until a predetermined time with respect to a start of an execution of a reservation associated with a recording/reproducing device,
• the television device includes a control part that confirms presence or absence of connection of the recording/reproducing device to the television device, and outputs a notification when the recording/reproducing device is not connected to the television device while allowing the reservation registration data to be stored in the first storage part, wherein
• until the start of the execution of the reservation, the television device allows collective management of the stored reservation registration data, and
• an instruction concerning said reservation registration data is given from said television device to said recording/reproducing device by using said two-way communication.

A television device capable of viewing a digital broadcast, capable of recording a number n (n is a positive integer) of recording/reproducing devices capable of recording digital broadcasts and capable of being connected to the television device, and is capable of two-way communication between devices in accordance with a CEC protocol defined in advance between both the devices, the television device comprising:

• a communication part for communicating with a communication part of the recording/reproducing devices;
• and
• a first storage part for storing reservation registration data including viewing reservation information of said television device and recording reservation information of each of said recording/reproducing devices is provided in said television device side;
• wherein,
• said reservation registration data includes a reservation target device ID, a reservation target program ID, and a reservation target time period,
• the reservation registration data is maintained in said first storage part at least until a predetermined time with respect to a start of an execution of a reservation associated with a c recording/reproducing device,
• the television device includes a control part that confirms presence or absence of connection of a recording/reproducing device to the television device, and outputs a notification when the recording/reproducing device is not connected to the television device while allowing the reservation registration data to be stored in the first storage part, wherein
• until the start of the execution of the reservation, the television device allows collective management of the stored reservation registration data, and
• an instruction concerning said reservation registration data is given from said television device to said recording/reproducing device by using said two-way communication.