True, however on the 9817 that button sends the normal "INPUT" command, but when under SAT, DVD, HDTV, VCR & CABLE it sends a discrete code ("jump to the input which has been named xxx"). On this model the codes DO NOT work the first time after powering on. There are no discrete codes for anything else, such as TUNER, widescreen modes, picture modes, etc. The 9815 may not even have the discrete video inputs for all I know.