my samsung tv only has two hdmi ports. One port brings in my cable tv and the other port (hdmi arc) has my vizio soundbar and I need one more for Amazon firestick. I believe I would need three used-at-the-same-time hdmi ports since I would need to keep the tv cable connection, the soundbar connection, and the firestick connection; an hdmi switcher, I thought, would only keep two ports active, I need three. appreciate any suggestions.