Content display device

A content display device comprising:

• an input unit configured to accept a channel identifier from outside the content display device;
• a display unit configured to display content associated with the channel identifier accepted by said input unit;
• a communication unit configured to connect with a other equipment on network to carry out communications;
• a receiving unit configured to receive content from other equipment on the network via said communication unit;
• a content setting storage unit configured to store a content setting which indicates an association among the channel identifier accepted by said input unit, an address of a content on the network, and an external client on the network;
• a content setting server unit configured to update and manage content settings stored in said content setting storage unit;
• and
• a display content management unit configured to determine whether an address of a content is in a content setting corresponding to the channel identifier accepted by the input unit, when said address of the content is not in said content setting, control the display unit to display information for accessing the content setting server unit from the external client represented in said content setting and identification information for identifying the external client device,
• wherein the content setting server unit is further configured to receive information on the content setting from the external client device which has accessed the content setting server unit by using the information displayed on the display unit, and update said content setting in accordance with the received information.