VPN question not answered on the Mega-Thread

I understand how VPNs work. What I need to know is:How does it work on a Firestick? Will I be able to watch cable channels not in my cable package (e.g.HBO or AMC)? How do I watch tv channels from around the world?You might have to ELI5. Thanx for your help. via /r/tech https://ift.tt/2XDUN6J