public async Task downloadEpg() {
            var webrequest = (HttpWebRequest)WebRequest.Create(Singleton.Instance.identify.epg_dump_json_url);
            using (var response = await webrequest.GetResponseAsync())
            using (Stream responseStream = response.GetResponseStream()) {

                IEnumerable<Epg> result = ReadJson<Epg>(responseStream);
                List<Epg.Programme> epgprog = new List<Epg.Programme>();
                foreach (var item in result) {
                    foreach (var p in item.programme) {
                        Debug.WriteLine(p.title);
                        epgprog.Add(p);
                    }
                    //Singleton.Instance.epg.programme.Add(item);
                }
            }

            //using (StreamReader sr = new StreamReader(responseStream))
            //using (JsonTextReader reader = new JsonTextReader(sr)) {

            //    reader.SupportMultipleContent = true;
            //    JsonSerializer serializer = new JsonSerializer();
            //    serializer.Converters.Add(new IsoDateTimeConverter { DateTimeFormat = "yyyyMMdHHmmss +ffff" });
            //    Singleton.Instance.epg = serializer.Deserialize<Epg>(reader);
            //    //Singleton.Instance.epg2 = serializer.Deserialize<Epg2>(reader);
            //}

        }

        // json.net utils

        public IEnumerable<TResult> ReadJson<TResult>(Stream stream) {
            var serializer = new JsonSerializer();
            serializer.Converters.Add(new IsoDateTimeConverter { DateTimeFormat = "yyyyMMdHHmmss +ffff" });

            using (var reader = new StreamReader(stream))
            using (var jsonReader = new JsonTextReader(reader)) {
                jsonReader.SupportMultipleContent = true;

                while (jsonReader.Read()) {
                    yield return serializer.Deserialize<TResult>(jsonReader);
                }
            }
        }