Display device, control method, a program and a program recorded thereon a computer-readable recording medium of the display device

A television receiver of the present invention (10), the display genre specifying unit for specifying a genre of the content (43), the content, from the corrected image quality parameters set in advance according to the identified genre parameters video processing unit to (19), the display control unit which displays the adjustment items for adjusting the image quality parameter value during the display of content (21), based on input by the user to adjust the image quality parameter value value adjusting section (41), when a specific genre switches to other genres, the parameter value changing section for changing the value set in advance in association with the genre after switching the image quality parameter value (42 ) and a parameter value changing section (42) at different times depending on the presence or absence of the display of the adjustment items, change the value of the image quality parameter That.