Exemplary embodiments disclose a display apparatus, a server, and a control method thereof. The display apparatus includes: a signal processor configured to process a broadcasting signal of a predetermined channel; a displayer configured to display an image based on the processed broadcasting signal; a communication section configured to communicate with a server; and a controller configured to receive a list of unified channels of a plurality of broadcasting areas from the server, determine whether the unified channels correspond to receivable channels in a current broadcasting area, and provide program information of a plurality of channels corresponding to the receivable channels, among the unified channels.