New: Increase TBA episode title delay to 48 hours (from 24) to deal with TheTVDB's API caching

Closes #4307

frontend/src/Settings/MediaManagement/MediaManagement.js

@@ -139,7 +139,7 @@ class MediaManagement extends Component {
                         <FormInputGroup
                           type={inputTypes.SELECT}
                           name="episodeTitleRequired"
-                          helpText="Prevent importing for up to 24 hours if the episode title is in the naming format and the episode title is TBA"
+                          helpText="Prevent importing for up to 48 hours if the episode title is in the naming format and the episode title is TBA"
                           values={episodeTitleRequiredOptions}
                           onChange={onInputChange}
                           {...settings.episodeTitleRequired}

src/NzbDrone.Core/MediaFiles/EpisodeImport/Specifications/EpisodeTitleSpecification.cs

@@ -74,9 +74,9 @@ namespace NzbDrone.Core.MediaFiles.EpisodeImport.Specifications
                 var airDateUtc = episode.AirDateUtc;
                 var title = episode.Title;
 
-                if (airDateUtc.HasValue && airDateUtc.Value.Before(DateTime.UtcNow.AddDays(-1)))
+                if (airDateUtc.HasValue && airDateUtc.Value.Before(DateTime.UtcNow.AddHours(-48)))
                 {
-                    _logger.Debug("Episode aired more than 1 day ago");
+                    _logger.Debug("Episode aired more than 48 hours ago");
                     continue;
                 }