Provided are a display device and a control method therefor, which uses, as an antenna, a support unit for supporting a display panel, so as to enable a user of the display device to view a terrestrial broadcast without having a separate antenna, and matches the signal reception characteristic of the support unit to each broadcast channel, so as to allow the support unit to function as an antenna having an improved reception rate. A display device according to an embodiment comprises: a support unit which supports a body and receives a broadcast signal transmitted from the outside; a matching unit which is disposed in the body so as to match the signal reception characteristic of the support unit to a frequency band allocated to a broadcast channel; a tuning unit which selects a signal of the frequency band allocated to the broadcast channel among broadcast signals output from the matching unit; and a display unit which displays an image signal included in the selected signal of the frequency band.