Where in the Orlando area? It is a very large area.
You might start off by going to the various station web sites and seeing if you can find the exact location of their transmitter as well as height. See if they have a coverage map on the site and compare it to where you live.
And you could possibly ask them by giving your address as well as the directo the windows in the room(s) with the TV face.
And you can make the small investment in an antenna and try hooking it up and drop the cable connections. If you get decent reception then contact the cable company to drop service. Or you can ask the cable company about seasonal services.