1. An operating method of a video display device including a display unit, the method comprising: receiving a broadcasting signal through a tuner; obtaining an uncompressed audio or video (AV) content through a receiving unit, wherein the uncompressed AV content includes a promotion content; extracting a characteristic information, including at least one of a watermark and a fingerprint, from a part of the uncompressed AV content; transmitting a first query to a first server, wherein the first query corresponds to the characteristic information; receiving a first response from the first server, based on the transmitted first query; transmitting a second query to a second server based on the first response; receiving a second response from the second server, based on the transmitted second query; and executing a promotion application based on the second response, wherein the promotion application controls a process for promoting a content.