{
  "alexa-libby": {
    "server": {
      "hostname": "http://localhost",
      "port": 8080
    },
    "movies": {
      "provider": "couchpotato",
      "server": {
        "apiKey": "abcdefghijklmnopqrstuvwxyz123456",
        "urlBase": ""
      }
    },
    "shows": {
      "provider": "sickbeard",
      "server": {
        "apiKey": "abcdefghijklmnopqrstuvwxyz123456",
        "urlBase": ""
      }
    }
  }
}

{
  "alexa-libby": {
    "server": {
      "hostname": "http://my-pvr-server.com",
      "port": 8080
    },
    "movies": {
      "provider": "couchpotato",
      "server": {
        "apiKey": "abcdefghijklmnopqrstuvwxyz123456",
        "urlBase": ""
      }
    },
    "shows": {
      "provider": "sickbeard",
      "server": {
        "apiKey": "abcdefghijklmnopqrstuvwxyz123456",
        "urlBase": ""
      }
    }
  }
}

Update config to make it clear the hostname has to be public.
Update config to make it clear the hostname has to be public.