JSON Parse

HTML

<div>
Check Console for values. 
</div>

<div>
Initial Problem is that my loops are not working as expected. 
</div>

JavaScript

var dataSet_initial = [
{
    "group": "satellite-1",
    "data": [
        {
            "label": "feed-1a",
            "data": [
                {"timeRange": [800, 820], "val": "TargetC"},
                {"timeRange": [800, 820], "val": "TargetD"},
                {"timeRange": [820, 840], "val": "TargetA"},
                {"timeRange": [820, 840], "val": "TargetC"},
                {"timeRange": [820, 840], "val": "TargetD"},
                {"timeRange": [820, 840], "val": "TargetB"}
            ]
        },
        {
            "label": "feed-2a",
            "data": [
                {"timeRange": [780, 800], "val": "TargetB"}
            ]
        }

    ]
},
{
    "group": "satellite-4",
    "data": [
        {
            "label": "feed-1b",
            "data": [
                {"timeRange": [780, 800], "val": "TargetA"},
                {"timeRange": [800, 820], "val": "TargetB"},
                {"timeRange": [800, 820], "val": "TargetC"}
            ]
        },
        {
            "label": "feed-2b",
            "data": [
                {"timeRange": [780, 800], "val": "TargetB"}
            ]
        }

    ]
}
];

/*
 * Prep Data
 */
var dataSet_stringify = JSON.stringify(dataSet_initial); //strigify JSON to parse it
var dataSet_parsed = JSON.parse(dataSet_stringify); // parse JSON


/*
 * # Satellites
 */
var getNumberofSatellites = dataSet_initial.length; // note: JSON is just Javascript objects.   you don't need to parse dataSet_initial to get the length of the JSON array in dataSet_initial
console.log("Number of Satellites: " + getNumberofSatellites);


/*
 * # Feeds
 */
var getGroupList = function(){	
	var numberOfFeeds = 0;
	dataSet_initial.forEach(function(element) {
  	numberOfFeeds += element.data.length;
  });
  
  return numberOfFeeds;
}; 
console.log("Feeds: " + getGroupList());



/*
 * # of Feed Data Feeds
 */
var getMostObservantFeed = function(){
  var mostObservant = {};
  var mostObservantFeeds = 0; // return this if you...