Indexers will actually support searching for daily episodes.

NzbDrone.Core/Providers/Indexer/Newzbin.cs

@@ -72,6 +72,16 @@ namespace NzbDrone.Core.Providers.Indexer
                            };
             }
 
+            if (searchModel.SearchType == SearchType.DailySearch)
+            {
+                return new List<string>
+                           {
+                               String.Format(
+                                   @"http://www.newzbin.com/search/query/?q={0}+{1:yyyy-MM-dd}&fpn=p&searchaction=Go&category=8&{2}",
+                                   searchModel.SeriesTitle, searchModel.AirDate, UrlParams)
+                           };
+            }
+
             return new List<string>();
         }
 

NzbDrone.Core/Providers/Indexer/Newznab.cs

@@ -49,9 +49,14 @@ namespace NzbDrone.Core.Providers.Indexer
 
                 if (searchModel.SearchType == SearchType.SeasonSearch)
                 {
-                    //Todo: Allow full season searching to process individual episodes
-                    //searchUrls.Add(String.Format("{0}&limit=100&q={1}&season{2}", url, searchModel.SeriesTitle, searchModel.SeasonNumber));
-                    searchUrls.Add(String.Format("{0}&limit=100&q={1}+Season", url, searchModel.SeriesTitle));
+                    searchUrls.Add(String.Format("{0}&limit=100&q={1}&season={2}", url, searchModel.SeriesTitle, searchModel.SeasonNumber));
+                    //searchUrls.Add(String.Format("{0}&limit=100&q={1}+Season", url, searchModel.SeriesTitle));
+                }
+
+                if (searchModel.SearchType == SearchType.DailySearch)
+                {
+                    searchUrls.Add(String.Format("{0}&limit=100&q={1}+{2:yyyy MM dd}", url, searchModel.SeriesTitle,
+                                                 searchModel.AirDate));
                 }
             }
 

NzbDrone.Core/Providers/Indexer/NzbMatrix.cs

@@ -64,6 +64,12 @@ namespace NzbDrone.Core.Providers.Indexer
                     searchUrls.Add(String.Format("{0}&term={1}+Season", url, searchModel.SeriesTitle));
                     searchUrls.Add(String.Format("{0}&term={1}+S{2:00}", url, searchModel.SeriesTitle, searchModel.SeasonNumber));
                 }
+
+                if (searchModel.SearchType == SearchType.DailySearch)
+                {
+                    searchUrls.Add(String.Format("{0}&term={1}+{2:yyyy MM dd}", url, searchModel.SeriesTitle,
+                                                 searchModel.AirDate));
+                }
             }
 
             return searchUrls;

NzbDrone.Core/Providers/Indexer/NzbsOrg.cs

@@ -62,6 +62,12 @@ namespace NzbDrone.Core.Providers.Indexer
                     searchUrls.Add(String.Format("{0}&action=search&q={1}+Season", url, searchModel.SeriesTitle));
                     searchUrls.Add(String.Format("{0}&action=search&q={1}+S{2:00}", url, searchModel.SeriesTitle, searchModel.SeasonNumber));
                 }
+
+                if (searchModel.SearchType == SearchType.DailySearch)
+                {
+                    searchUrls.Add(String.Format("{0}&action=search&q={1}+{2:yyyy.MM.dd}", url, searchModel.SeriesTitle,
+                                                 searchModel.AirDate));
+                }
             }
 
             return searchUrls;