Fixed only one movie appearing when list does not give us a tmdbid

src/NzbDrone.Core/NetImport/NetImportSearchService.cs

@@ -81,7 +81,19 @@ namespace NzbDrone.Core.NetImport
 
             _logger.Debug("Found {0} movies from list(s) {1}", movies.Count, string.Join(", ", lists.Select(l => l.Definition.Name)));
 
-            return movies.DistinctBy(x => x.TmdbId).ToList();
+			return movies.DistinctBy(x => {
+				if (x.TmdbId != 0)
+				{
+					return x.TmdbId.ToString();
+				}
+
+				if (x.ImdbId.IsNotNullOrWhiteSpace())
+				{
+					return x.ImdbId;
+				}
+
+				return x.Title;
+			}).ToList();
         }