If this is the case, then you may not need the a/b antenna switch. You are aware that the hdmi out (dvb-t and dvb-t2 MediaCorp channels with video and audio) from the set top box goes to the tv set's hdmi in.Using indoor antenna for dvb-t2
Your normal matv or scv wall point (rf signal) goes to the rf input of your tv set to receive the usual analogue tv channels. So the a/b antenna switch is not needed.
Did you ask because you are a Starhub subscriber and your TV's hdmi (1 only?) is being used for the Starhub stb?
