V vifrench Commendable Jul 4, 2016 1 0 1,510 Jul 4, 2016 #1 I have HDMI1 and 2 on my tv. I needed more ports to plug other components. I don't know where to plug Roku. Does it go into HDMI 1 slot or any slot on the switcher.? My HDMI 1 cable is plugged from cable box to back of tv. I have Comcast cable.