diff --git a/NzbDrone.Api/Calendar/CalendarModule.cs b/NzbDrone.Api/Calendar/CalendarModule.cs
index a03026cde..627dcc8a2 100644
--- a/NzbDrone.Api/Calendar/CalendarModule.cs
+++ b/NzbDrone.Api/Calendar/CalendarModule.cs
@@ -2,6 +2,7 @@
 using System.Collections.Generic;
 using System.Linq;
 using NzbDrone.Api.Episodes;
+using NzbDrone.Api.Extensions;
 using NzbDrone.Api.Mapping;
 using NzbDrone.Common;
 using NzbDrone.Core.Tv;
@@ -11,13 +12,13 @@ namespace NzbDrone.Api.Calendar
     public class CalendarModule : NzbDroneRestModule<EpisodeResource>
     {
         private readonly IEpisodeService _episodeService;
-        private readonly SeriesService _seriesService;
+        private readonly SeriesRepository _seriesRepository;
 
-        public CalendarModule(IEpisodeService episodeService, SeriesService seriesService)
+        public CalendarModule(IEpisodeService episodeService, SeriesRepository seriesRepository)
             : base("/calendar")
         {
             _episodeService = episodeService;
-            _seriesService = seriesService;
+            _seriesRepository = seriesRepository;
 
             GetResourceAll = GetPaged;
         }
@@ -33,13 +34,10 @@ private List<EpisodeResource> GetPaged()
             if (queryStart.HasValue) start = DateTime.Parse(queryStart.Value);
             if (queryEnd.HasValue) end = DateTime.Parse(queryEnd.Value);
 
-            var episodes = _episodeService.EpisodesBetweenDates(start, end);
-            var episodeResources = ToListResource(() => episodes);
+            var resources = ToListResource(() => _episodeService.EpisodesBetweenDates(start, end))
+                .LoadSubtype(e => e.SeriesId, _seriesRepository);
 
-            var series = _seriesService.GetSeriesInList(episodeResources.SelectDistinct(e => e.SeriesId));
-            episodeResources.Join(series, episode => episode.SeriesId, s => s.Id, episode => episode.Series);
-
-            return episodeResources;
+            return resources.ToList();
         }
     }
 }
diff --git a/NzbDrone.Api/Missing/MissingModule.cs b/NzbDrone.Api/Missing/MissingModule.cs
index 57402e547..caad7dcba 100644
--- a/NzbDrone.Api/Missing/MissingModule.cs
+++ b/NzbDrone.Api/Missing/MissingModule.cs
@@ -1,5 +1,6 @@
 using System.Linq;
 using NzbDrone.Api.Episodes;
+using NzbDrone.Api.Extensions;
 using NzbDrone.Common;
 using NzbDrone.Core.Datastore;
 using NzbDrone.Core.Tv;
@@ -9,13 +10,13 @@ namespace NzbDrone.Api.Missing
     public class MissingModule : NzbDroneRestModule<EpisodeResource>
     {
         private readonly IEpisodeService _episodeService;
-        private readonly SeriesService _seriesService;
+        private readonly SeriesRepository _seriesRepository;
 
-        public MissingModule(IEpisodeService episodeService, SeriesService seriesService)
+        public MissingModule(IEpisodeService episodeService, SeriesRepository seriesRepository)
             :base("missing")
         {
             _episodeService = episodeService;
-            _seriesService = seriesService;
+            _seriesRepository = seriesRepository;
             GetResourcePaged = GetMissingEpisodes;
         }
 
@@ -29,12 +30,10 @@ private PagingResource<EpisodeResource> GetMissingEpisodes(PagingResource<Episod
                 SortDirection = pagingResource.SortDirection
             };
 
-            var episodeResources = ApplyToPage(_episodeService.EpisodesWithoutFiles, pagingSpec);
+            var resource = ApplyToPage(_episodeService.EpisodesWithoutFiles, pagingSpec);
+            resource.Records = resource.Records.LoadSubtype(e => e.SeriesId, _seriesRepository).ToList();
 
-            var series = _seriesService.GetSeriesInList(episodeResources.Records.SelectDistinct(e => e.SeriesId));
-            episodeResources.Records.Join(series, episode => episode.SeriesId, s => s.Id, episode => episode.Series);
-
-            return episodeResources;
+            return resource;
         }
     }
 }
\ No newline at end of file
diff --git a/NzbDrone.Common/EnumerableExtensions.cs b/NzbDrone.Common/EnumerableExtensions.cs
deleted file mode 100644
index 2f084fffc..000000000
--- a/NzbDrone.Common/EnumerableExtensions.cs
+++ /dev/null
@@ -1,40 +0,0 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Linq.Expressions;
-using System.Reflection;
-
-namespace NzbDrone.Common
-{
-    public static class EnumerableExtensions
-    {
-        public static IEnumerable<TKey> SelectDistinct<TOuter, TKey>(this IEnumerable<TOuter> outer, Func<TOuter, TKey> outerKeySelector)
-        {
-            return outer.Select(outerKeySelector).Distinct();
-        }
-
-        public static IEnumerable<TOuter> Join<TOuter, TInner, TKey, TProperty>(this IEnumerable<TOuter> outer, IEnumerable<TInner> inner, Func<TOuter, TKey> outerKeySelector, Func<TInner, TKey> innerKeySelector, Expression<Func<TOuter, TProperty>> outerProperty)
-        {
-            var outerList = outer.ToList();
-            var innerList = inner.ToList();
-
-            foreach (var outerElement in outerList)
-            {
-                var outerKey = outerKeySelector(outerElement);
-
-                foreach (var innerElement in innerList)
-                {
-                    var innerKey = innerKeySelector(innerElement);
-
-                    if (innerKey.Equals(outerKey))
-                    {
-                        var prop = (PropertyInfo)((MemberExpression)outerProperty.Body).Member;
-                        prop.SetValue(outerElement, innerElement, null);
-                    }
-                }
-            }
-
-            return outerList;
-        }
-    }
-}
\ No newline at end of file
diff --git a/NzbDrone.Common/NzbDrone.Common.csproj b/NzbDrone.Common/NzbDrone.Common.csproj
index e7c49248c..7410fc382 100644
--- a/NzbDrone.Common/NzbDrone.Common.csproj
+++ b/NzbDrone.Common/NzbDrone.Common.csproj
@@ -84,7 +84,6 @@
     <Compile Include="Composition\Container.cs" />
     <Compile Include="Composition\IContainer.cs" />
     <Compile Include="Composition\ContainerBuilderBase.cs" />
-    <Compile Include="EnumerableExtensions.cs" />
     <Compile Include="EnsureThat\Ensure.cs" />
     <Compile Include="EnsureThat\EnsureBoolExtensions.cs" />
     <Compile Include="EnsureThat\EnsureCollectionExtensions.cs" />