i have a USB plug that works excellent with public HD broadcast, or can take a signal in from antennae or cable. but i don't there are any public HD broadcasts in Belize. At least i haven't tried it yet outside the states. i'll ask around.

Hauppauge WinTV-HVR 950 Hybrid TV Stick
http://www.amazon.com/gp/product/B000RHVOJM

works great with mac or PC