parse list from another source, make file guide

TV Player WPF/ViewModels/ProgramsData.cs

@@ -1,4 +1,5 @@
-using System.Reactive.Subjects;
+using System.Reactive;
+using System.Reactive.Subjects;
 
 namespace TV_Player
 {
@@ -6,11 +7,11 @@ namespace TV_Player
     {
         private readonly ReplaySubject<List<M3UInfo>> programsSubject = new ReplaySubject<List<M3UInfo>>();
         private readonly ReplaySubject<List<GroupInfo>> groupsSubject = new ReplaySubject<List<GroupInfo>>();
-        private readonly ReplaySubject<List<ProgramGuide>> programGuideSubject = new ReplaySubject<List<ProgramGuide>>();
+        private readonly ReplaySubject<Unit> programGuideSubject = new ReplaySubject<Unit>();
         public IObservable<List<M3UInfo>> AllPrograms => programsSubject;
         public IObservable<List<GroupInfo>> GroupsInformation => groupsSubject;
 
-        public IObservable<List<ProgramGuide>> ProgramGuideInfo => programGuideSubject;
+        public IObservable<Unit> ProgramGuideInfo => programGuideSubject;
         public ProgramsData()
         {            
         }
@@ -20,17 +21,6 @@ namespace TV_Player
             //string m3uLink = "http://pl.da-tv.vip/a71e77fa/835b3216/tv.m3u";
             var result = await M3UParser.DownloadM3UFromWebAsync(m3uLink);
 
-
-            // For how hardcoded add custom channel
-            result.programList.Add(new M3UInfo()
-            {
-                GroupTitle = "Познавательные",
-                Name = "Discovery science",
-                Logo = "http://ip.viks.tv/posts/2018-11/1543603622_discovery_science.png",
-                Number = Convert.ToString(result.programList.Count+1),
-                Url= "https://s2.viks.tv/571/index.m3u8?k=1715093638p791i991i86i78S9b9c0d8fefdcO74ff3ed2f4710c95b07"
-            });; 
-
             programsSubject.OnNext(result.programList);
 
             var groupping = result.programList.GroupBy(item => item.GroupTitle)
@@ -41,11 +31,16 @@ namespace TV_Player
             await Task.Run(() => GetProgramGuide(result.programGuide));
         }
 
+        public Task<ProgramGuide> GetGuideByProgram(string channelID)
+        {
+            return M3UParser.ParseEpg(channelID);
+        }
+
         private async Task GetProgramGuide(string guideLink)
         {
-            //string guideLink = "http://epg.da-tv.vip/107-light.xml";
-            var programGuide = await M3UParser.DownloadGuideFromWebAsync(guideLink);
-            programGuideSubject.OnNext(programGuide);
+            //guideLink = "http://epg.da-tv.vip/107-light.xml";
+            await M3UParser.DownloadGuideFromWebAsync(guideLink);
+            programGuideSubject.OnNext(Unit.Default);
         }
 
         internal void GetData(string playlistURL)