| CPC H04N 21/4882 (2013.01) [H04N 21/4126 (2013.01); H04N 21/47214 (2013.01)] | 16 Claims |

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1. A server comprising:
a transceiver configured to perform communication through a network;
a storage device configured to store reservation data including a title, broadcasting date, and time slot of content; and
a controller configured to:
when a first signal for setting a watching reservation for specific content is received from an image display apparatus through the transceiver, check a plurality of content providers that provide a service related to watching of the specific content,
check a broadcasting date and a time slot of the specific content with respect to each of the plurality of content providers,
generate reservation data, which contains a title, the broadcasting date, and the time slot of the specific content, for the specific content and store the reservation data in the storage device;
when a first time point corresponding to the broadcasting date and the time slot of the specific content arrives, determine at least one of the plurality of content providers that provides the specific content live at the first time point; and
transmit a notification message, which contains data on the at least one of the plurality of content providers, that is related to watching of the specific content to the image display apparatus,
wherein each of the at least one of the plurality of content providers corresponds to an item included in a first screen output through the image display apparatus, the item linked to an application for a service providing the specific content live.
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