Refresh series with recently aired episodes with TBA titles

Co-authored-by: Stevie Robinson <stevie.robinson@gmail.com>

src/NzbDrone.Core/Tv/ShouldRefreshSeries.cs

@@ -1,6 +1,7 @@
 using System;
 using System.Linq;
 using NLog;
+using NzbDrone.Common.Extensions;
 
 namespace NzbDrone.Core.Tv
 {
@@ -28,6 +29,19 @@ namespace NzbDrone.Core.Tv
                 return true;
             }
 
+            var episodes = _episodeService.GetEpisodeBySeries(series.Id);
+
+            var atLeastOneAiredEpisodeWithoutTitle = episodes.Any(e =>
+                e.SeasonNumber > 0 &&
+                e.AirDateUtc.HasValue && e.AirDateUtc.Value.Before(DateTime.UtcNow) &&
+                e.Title.Equals("TBA", StringComparison.Ordinal));
+
+            if (atLeastOneAiredEpisodeWithoutTitle)
+            {
+                _logger.Trace("Series {0} with at least one aired episode with TBA title, should refresh.", series.Title);
+                return true;
+            }
+
             if (series.LastInfoSync >= DateTime.UtcNow.AddHours(-6))
             {
                 _logger.Trace("Series {0} last updated less than 6 hours ago, should not be refreshed.", series.Title);
@@ -40,7 +54,7 @@ namespace NzbDrone.Core.Tv
                 return true;
             }
 
-            var lastEpisode = _episodeService.GetEpisodeBySeries(series.Id).MaxBy(e => e.AirDateUtc);
+            var lastEpisode = episodes.MaxBy(e => e.AirDateUtc);
 
             if (lastEpisode != null && lastEpisode.AirDateUtc > DateTime.UtcNow.AddDays(-30))
             {