Operating interface, mobile communication device, and method for switching MDTV specification

The invention provides an operating interface for a mobile communication device, and the operating interface is used for controlling the mobile communication device to switch and receive video signals with different specifications. The operating interface comprises a menu and a selecting block, wherein the menu has a first option item and a second option item, and the selecting block selects the first option item or the second option item of the menu. When the selecting block selects the first option item, the operating interface controls the mobile communication device to receive a first video signal of a first MDTV specification. When the selecting block selects the second option item, the operating interface controls the mobile communication device to receive a second video signal of a second MDTV specification.