Abstract: A video switcher that enables to perform setting operation while checking the set values without being distracted by a display unit even during a program is provided. Knobs (21) serving as setting operation members are provided on a console (13) and are operated for changing the set values of the video effects. A display unit (17) displays the set values in accordance with the operation of the setting operation members. The display unit (17) is movable in a predetermined retraction direction in which the exposed range is reduced. The position of the display unit (17) in the retraction direction is detected. A control unit controls displaying by the display unit (17) in accordance with the detected position information and changes the display of the set values so as to display the set values on the exposed range that is remaining when the display unit (17) is shifted in the retraction direction.