Does the Amazon Fire stick have a CEC option? If so I would turn that option off the anynet feature is causing it to switch over automatically.
Regards,
HD Tech
I normally have my Verizon TV input on HDMI4. When I turn on the TV it goes to that input. I just installed Amazon's Fire Stick for streaming use into HDMI2. Now when the TV turns on it first goes to HDMI4 but after 5 seconds switches to HDMI2 and I have to use Smart Hub to get back to HDMI4 to watch my TV. How do I get the TV to always default to HDMI4 and if I want to watch the Amazon stick I can then use Smart Hub to switch inputs.

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