If you have a hardwired IR signal distribution system, you can manually switch inputs using any remote control with learning ability. The switchers also have built-in A and B buttons that you can press. They pass all international video signals, and are completely HDTV compatible. Other features include an IR input confirmation LED, so you'll have a visual confirmation that IR signals have been received, and an adjustable delay time from B to A switching, which eliminates potential switching glitches. Both models come with a 12VDC power supply.
Gold is an extremely good electrical conductor and it is very resistant to oxidation and corrosion.
Other conductors tend to oxidize over time and lose their surface conductivity.