how to get classes and its properties in c#

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace BusinessLayer
{
    
        public class Outlet
        {
            public string id { get; set; }
            public string key { get; set; }
            public string title { get; set; }
        }

        public class Service
        {
            public string type { get; set; }
            public string id { get; set; }
            public string key { get; set; }
            public string title { get; set; }
            public List<Outlet> outlets { get; set; }
        }

        public class Image
        {
            public string pid { get; set; }
        }

        public class DisplayTitles
        {
            public string title { get; set; }
            public string subtitle { get; set; }
        }

        public class Service2
        {
            public string type { get; set; }
            public string id { get; set; }
            public string key { get; set; }
            public string title { get; set; }
        }

        public class Ownership
        {
            public Service2 service { get; set; }
        }

        public class Image2
        {
            public string pid { get; set; }
        }

        public class Image3
        {
            public string pid { get; set; }
        }

        public class Service3
        {
            public string type { get; set; }
            public string id { get; set; }
            public string key { get; set; }
            public string title { get; set; }
        }

        public class Ownership2
        {
            public Service3 service { get; set; }
        }

        public class Programme3
        {
            public string type { get; set; }
            public string pid { get; set; }
            public string title { get; set; }
            public object position { get; set; }
            public Image3 image { get; set; }
            public object expected_child_count { get; set; }
            public string first_broadcast_date { get; set; }
            public Ownership2 ownership { get; set; }
        }

        public class Programme2
        {
            public string type { get; set; }
            public string pid { get; set; }
            public string title { get; set; }
            public int position { get; set; }
            public Image2 image { get; set; }
            public int expected_child_count { get; set; }
            public string first_broadcast_date { get; set; }
            public Programme3 programme { get; set; }
        }

        public class Programme
        {
            public string type { get; set; }
            public string pid { get; set; }
            public int? position { get; set; }
            public string title { get; set; }
            public string short_synopsis { get; set; }
            public string media_type { get; set; }
            public int duration { get; set; }
            public Image image { get; set; }
            public DisplayTitles display_titles { get; set; }
            public string first_broadcast_date { get; set; }
            public Ownership ownership { get; set; }
            public Programme2 programme { get; set; }
            public bool is_available_mediaset_pc_sd { get; set; }
            public bool is_legacy_media { get; set; }
        }

        public class Broadcast
        {
            public bool is_repeat { get; set; }
            public bool is_blanked { get; set; }
            public string schedule_date { get; set; }
            public string start { get; set; }
            public string end { get; set; }
            public int duration { get; set; }
            public Service service { get; set; }
            public Programme programme { get; set; }
        }

        public class RootObject
        {
            public int page { get; set; }
            public int total { get; set; }
            public int offset { get; set; }
            public List<Broadcast> broadcasts { get; set; } // how can i get this list
        }
    
}

using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using BusinessLayer;
using Newtonsoft.Json;
using System.Web.Script.Serialization;

namespace WebApplication
{
    public partial class GetJSon : System.Web.UI.Page
    {
        JsonBL bl = new JsonBL();
        RootObject oRootObject = new RootObject();        

        protected void Page_Load(object sender, EventArgs e)
        {
            if (!IsPostBack)
            {
                string url = "http://www.abc.co.uk/tv/programmes/genres/drama/scifiandfantasy/schedules/upcoming.json";
                string strJSon = bl.JSonData(url);
                JavaScriptSerializer oJS = new JavaScriptSerializer();
                oRootObject = oJS.Deserialize<RootObject>(strJSon);
            }
        }

        public void GetData()
        {
            //list<boardcast> code
        }
    }
}