@Lexi775
Lexi, there are a number of devices on the market that will do what you want to achieve.
I am not sure what you will have there on the Big Island but, there will certainly be something available in Honolulu.
Here in Australia we have a large office supply chain called Officeworks and they stock this switch which is bi-directional and will allow you to connect 2 signal sources to the one HDMI port on the TV.......
Just remember Lexi, when searching for a suitable product, you need a 'Switch', not a splitter!
All a splitter does is convert one signal to two or more outputs but, it is the same signal.
This switch does not enable you to use multiple signals at the same time like split screen, as you would get on your screen with 'Zoom'. It is an either/or situation where you switch from one device to the other via the switch, but it does allow you to connect more devices to your TV than you have HDMI inputs.
It is not expensive, that $35 AUD translates to about $27 USD.....Good luck tracking one down!
Cheers........Rob