I am certain that there must be any number of devices which may be used to navigate or operate a computer via a standard remote control device. But, if that's correct, it seems very difficult to locate such devices thru Google or other search engines. If the word "remote" is used, almost all queries result in return of info relative to LogMeIn; TeamViewer; GoToMeeting; etc.
Basically what I'm looking for is a device or system with which I can operate my video editing PC (located in my office); while viewing its display on the big screen TV in my living room (about 20 feet away); using perhaps a standard remote control unit, such as a TV remote, or A/V Receiver remote device, to send signals to the PC, received by a USB connected piece of hardware, which then transmits mouse clicks or navigational info to the computer. In short, what I'm looking for is a means of operating the computer's keyboard and mouse while seated in another room of the house.
If anyone is aware of items which would fill this requirement, I would very much appreciate relevant info.