A display apparatus includes an LCD panel, a main PCB having a signal processor processing and transmitting a video signal to the LCD panel, and a PCB supporting member supporting the main PCB, a front cover, and a rear cover attached to the front cover to accommodate the PCB supporting member, the main PCB, and the LCD panel, a through hole formed in the rear cover. A TV tuner unit includes a TV tuner receiving a TV video signal, a casing accommodating the TV tuner, and a projection formed on the casing. A tuner accommodating part includes a housing in which the TV tuner unit is removably inserted, a projection holder locking and releasing the projection of the casing, a pushing part inserted into the through hole of the rear cover and releasing the projection from the projection holder. The TV tuner is easily combined into and removed from the display apparatus.