diff --git a/back/src/Kyoo.Abstractions/Models/INews.cs b/back/src/Kyoo.Abstractions/Models/INews.cs
index 5b25eaca..b5642f5d 100644
--- a/back/src/Kyoo.Abstractions/Models/INews.cs
+++ b/back/src/Kyoo.Abstractions/Models/INews.cs
@@ -24,8 +24,8 @@ namespace Kyoo.Abstractions.Models;
 /// <summary>
 /// A show, a movie or a collection.
 /// </summary>
-[OneOf(Types = new[] { typeof(Episode), typeof(Movie) })]
-public interface INews : IResource, IThumbnails, IMetadata, IAddedDate, IQuery
+[OneOf(Types = [typeof(Episode), typeof(Movie)])]
+public interface INews : IResource, IThumbnails, IAddedDate, IQuery
 {
 	static Sort IQuery.DefaultSort => new Sort<INews>.By(nameof(AddedDate), true);
 }
diff --git a/back/src/Kyoo.Abstractions/Models/MetadataID.cs b/back/src/Kyoo.Abstractions/Models/MetadataID.cs
index 37919c10..ec384ec8 100644
--- a/back/src/Kyoo.Abstractions/Models/MetadataID.cs
+++ b/back/src/Kyoo.Abstractions/Models/MetadataID.cs
@@ -33,3 +33,29 @@ public class MetadataId
 	/// </summary>
 	public string? Link { get; set; }
 }
+
+/// <summary>
+/// ID informations about an episode.
+/// </summary>
+public class EpisodeId
+{
+	/// <summary>
+	/// The Id of the show on the metadata database.
+	/// </summary>
+	public string ShowId { get; set; }
+
+	/// <summary>
+	/// The season number or null if absolute numbering is used in this database.
+	/// </summary>
+	public int? Season { get; set; }
+
+	/// <summary>
+	/// The episode number or absolute number if Season is null.
+	/// </summary>
+	public int Episode { get; set; }
+
+	/// <summary>
+	/// The URL of the resource on the external provider.
+	/// </summary>
+	public string? Link { get; set; }
+}
diff --git a/back/src/Kyoo.Abstractions/Models/Resources/Collection.cs b/back/src/Kyoo.Abstractions/Models/Resources/Collection.cs
index eb1bda94..f2539a55 100644
--- a/back/src/Kyoo.Abstractions/Models/Resources/Collection.cs
+++ b/back/src/Kyoo.Abstractions/Models/Resources/Collection.cs
@@ -28,7 +28,7 @@ namespace Kyoo.Abstractions.Models;
 /// <summary>
 /// A class representing collections of <see cref="Show"/>.
 /// </summary>
-public class Collection : IQuery, IResource, IMetadata, IThumbnails, IAddedDate, ILibraryItem
+public class Collection : IQuery, IResource, IMetadata, IThumbnails, IAddedDate, IRefreshable, ILibraryItem
 {
 	public static Sort DefaultSort => new Sort<Collection>.By(nameof(Collection.Name));
 
@@ -76,6 +76,9 @@ public class Collection : IQuery, IResource, IMetadata, IThumbnails, IAddedDate,
 	/// <inheritdoc />
 	public Dictionary<string, MetadataId> ExternalId { get; set; } = new();
 
+	/// <inheritdoc />
+	public DateTime? NextMetadataRefresh { get; set; }
+
 	public Collection() { }
 
 	[JsonConstructor]
diff --git a/back/src/Kyoo.Abstractions/Models/Resources/Episode.cs b/back/src/Kyoo.Abstractions/Models/Resources/Episode.cs
index 536decaf..f32bf741 100644
--- a/back/src/Kyoo.Abstractions/Models/Resources/Episode.cs
+++ b/back/src/Kyoo.Abstractions/Models/Resources/Episode.cs
@@ -31,7 +31,7 @@ namespace Kyoo.Abstractions.Models;
 /// <summary>
 /// A class to represent a single show's episode.
 /// </summary>
-public class Episode : IQuery, IResource, IMetadata, IThumbnails, IAddedDate, INews
+public class Episode : IQuery, IResource, IThumbnails, IAddedDate, IRefreshable, INews
 {
 	// Use absolute numbers by default and fallback to season/episodes if it does not exists.
 	public static Sort DefaultSort =>
@@ -166,7 +166,10 @@ public class Episode : IQuery, IResource, IMetadata, IThumbnails, IAddedDate, IN
 	public Image? Logo { get; set; }
 
 	/// <inheritdoc />
-	public Dictionary<string, MetadataId> ExternalId { get; set; } = new();
+	public Dictionary<string, EpisodeId> ExternalId { get; set; } = [];
+
+	/// <inheritdoc />
+	public DateTime? NextMetadataRefresh { get; set; }
 
 	/// <summary>
 	/// The previous episode that should be seen before viewing this one.
diff --git a/back/src/Kyoo.Abstractions/Models/Resources/Interfaces/IRefreshable.cs b/back/src/Kyoo.Abstractions/Models/Resources/Interfaces/IRefreshable.cs
new file mode 100644
index 00000000..cef2b663
--- /dev/null
+++ b/back/src/Kyoo.Abstractions/Models/Resources/Interfaces/IRefreshable.cs
@@ -0,0 +1,29 @@
+// Kyoo - A portable and vast media library solution.
+// Copyright (c) Kyoo.
+//
+// See AUTHORS.md and LICENSE file in the project root for full license information.
+//
+// Kyoo is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// any later version.
+//
+// Kyoo is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Kyoo. If not, see <https://www.gnu.org/licenses/>.
+
+using System;
+
+namespace Kyoo.Abstractions.Models;
+
+public interface IRefreshable
+{
+	/// <summary>
+	/// The date of the next metadata refresh. Null if auto-refresh is disabled.
+	/// </summary>
+	public DateTime? NextMetadataRefresh { get; set; }
+}
diff --git a/back/src/Kyoo.Abstractions/Models/Resources/Movie.cs b/back/src/Kyoo.Abstractions/Models/Resources/Movie.cs
index 4e1d0282..18d49946 100644
--- a/back/src/Kyoo.Abstractions/Models/Resources/Movie.cs
+++ b/back/src/Kyoo.Abstractions/Models/Resources/Movie.cs
@@ -38,6 +38,7 @@ public class Movie
 		IMetadata,
 		IThumbnails,
 		IAddedDate,
+		IRefreshable,
 		ILibraryItem,
 		INews,
 		IWatchlist
@@ -134,6 +135,9 @@ public class Movie
 	/// <inheritdoc />
 	public Dictionary<string, MetadataId> ExternalId { get; set; } = new();
 
+	/// <inheritdoc />
+	public DateTime? NextMetadataRefresh { get; set; }
+
 	/// <summary>
 	/// The ID of the Studio that made this show.
 	/// </summary>
diff --git a/back/src/Kyoo.Abstractions/Models/Resources/Season.cs b/back/src/Kyoo.Abstractions/Models/Resources/Season.cs
index 8d3e0489..d94e6514 100644
--- a/back/src/Kyoo.Abstractions/Models/Resources/Season.cs
+++ b/back/src/Kyoo.Abstractions/Models/Resources/Season.cs
@@ -31,7 +31,7 @@ namespace Kyoo.Abstractions.Models;
 /// <summary>
 /// A season of a <see cref="Show"/>.
 /// </summary>
-public class Season : IQuery, IResource, IMetadata, IThumbnails, IAddedDate
+public class Season : IQuery, IResource, IMetadata, IThumbnails, IAddedDate, IRefreshable
 {
 	public static Sort DefaultSort => new Sort<Season>.By(x => x.SeasonNumber);
 
@@ -119,6 +119,9 @@ public class Season : IQuery, IResource, IMetadata, IThumbnails, IAddedDate
 	/// <inheritdoc />
 	public Dictionary<string, MetadataId> ExternalId { get; set; } = new();
 
+	/// <inheritdoc />
+	public DateTime? NextMetadataRefresh { get; set; }
+
 	/// <summary>
 	/// The list of episodes that this season contains.
 	/// </summary>
diff --git a/back/src/Kyoo.Abstractions/Models/Resources/Show.cs b/back/src/Kyoo.Abstractions/Models/Resources/Show.cs
index edee8866..b3af184f 100644
--- a/back/src/Kyoo.Abstractions/Models/Resources/Show.cs
+++ b/back/src/Kyoo.Abstractions/Models/Resources/Show.cs
@@ -39,6 +39,7 @@ public class Show
 		IOnMerge,
 		IThumbnails,
 		IAddedDate,
+		IRefreshable,
 		ILibraryItem,
 		IWatchlist
 {
@@ -126,6 +127,9 @@ public class Show
 	/// <inheritdoc />
 	public Dictionary<string, MetadataId> ExternalId { get; set; } = new();
 
+	/// <inheritdoc />
+	public DateTime? NextMetadataRefresh { get; set; }
+
 	/// <summary>
 	/// The ID of the Studio that made this show.
 	/// </summary>
diff --git a/back/src/Kyoo.Postgresql/DatabaseContext.cs b/back/src/Kyoo.Postgresql/DatabaseContext.cs
index db5de9c2..6f655a4b 100644
--- a/back/src/Kyoo.Postgresql/DatabaseContext.cs
+++ b/back/src/Kyoo.Postgresql/DatabaseContext.cs
@@ -157,21 +157,11 @@ public abstract class DatabaseContext : DbContext
 		optionsBuilder.UseQueryTrackingBehavior(QueryTrackingBehavior.NoTracking);
 	}
 
-	private static ValueComparer<Dictionary<string, T>> _GetComparer<T>()
-	{
-		return new(
-			(c1, c2) => c1!.SequenceEqual(c2!),
-			c => c.Aggregate(0, (a, v) => HashCode.Combine(a, v.GetHashCode()))
-		);
-	}
-
-	/// <summary>
-	/// Build the metadata model for the given type.
-	/// </summary>
-	/// <param name="modelBuilder">The database model builder</param>
-	/// <typeparam name="T">The type to add metadata to.</typeparam>
-	private static void _HasMetadata<T>(ModelBuilder modelBuilder)
-		where T : class, IMetadata
+	private static void _HasJson<T, TVal>(
+		ModelBuilder builder,
+		Expression<Func<T, Dictionary<string, TVal>>> property
+	)
+		where T : class
 	{
 		// TODO: Waiting for https://github.com/dotnet/efcore/issues/29825
 		// modelBuilder.Entity<T>()
@@ -179,22 +169,33 @@ public abstract class DatabaseContext : DbContext
 		// 	{
 		// 		x.ToJson();
 		// 	});
-		modelBuilder
+		builder
 			.Entity<T>()
-			.Property(x => x.ExternalId)
+			.Property(property)
 			.HasConversion(
 				v => JsonSerializer.Serialize(v, (JsonSerializerOptions?)null),
 				v =>
-					JsonSerializer.Deserialize<Dictionary<string, MetadataId>>(
+					JsonSerializer.Deserialize<Dictionary<string, TVal>>(
 						v,
 						(JsonSerializerOptions?)null
 					)!
 			)
 			.HasColumnType("json");
-		modelBuilder
+		builder
 			.Entity<T>()
-			.Property(x => x.ExternalId)
-			.Metadata.SetValueComparer(_GetComparer<MetadataId>());
+			.Property(property)
+			.Metadata.SetValueComparer(
+				new ValueComparer<Dictionary<string, TVal>>(
+					(c1, c2) => c1!.SequenceEqual(c2!),
+					c => c.Aggregate(0, (a, v) => HashCode.Combine(a, v.GetHashCode()))
+				)
+			);
+	}
+
+	private static void _HasMetadata<T>(ModelBuilder modelBuilder)
+		where T : class, IMetadata
+	{
+		_HasJson<T, MetadataId>(modelBuilder, x => x.ExternalId);
 	}
 
 	private static void _HasImages<T>(ModelBuilder modelBuilder)
@@ -215,6 +216,16 @@ public abstract class DatabaseContext : DbContext
 			.ValueGeneratedOnAdd();
 	}
 
+	private static void _HasRefreshDate<T>(ModelBuilder builder)
+		where T : class, IRefreshable
+	{
+		// schedule a refresh soon since metadata can change frequently for recently added items ond online databases
+		builder.Entity<T>()
+			.Property(x => x.NextMetadataRefresh)
+			.HasDefaultValueSql("now() at time zone 'utc' + interval '2 hours'")
+			.ValueGeneratedOnAdd();
+	}
+
 	/// <summary>
 	/// Create a many to many relationship between the two entities.
 	/// The resulting relationship will have an available <see cref="AddLinks{T1,T2}"/> method.
@@ -296,8 +307,8 @@ public abstract class DatabaseContext : DbContext
 		_HasMetadata<Movie>(modelBuilder);
 		_HasMetadata<Show>(modelBuilder);
 		_HasMetadata<Season>(modelBuilder);
-		_HasMetadata<Episode>(modelBuilder);
 		_HasMetadata<Studio>(modelBuilder);
+		_HasJson<Episode, EpisodeId>(modelBuilder, x => x.ExternalId);
 
 		_HasImages<Collection>(modelBuilder);
 		_HasImages<Movie>(modelBuilder);
@@ -313,6 +324,12 @@ public abstract class DatabaseContext : DbContext
 		_HasAddedDate<User>(modelBuilder);
 		_HasAddedDate<Issue>(modelBuilder);
 
+		_HasRefreshDate<Collection>(modelBuilder);
+		_HasRefreshDate<Movie>(modelBuilder);
+		_HasRefreshDate<Show>(modelBuilder);
+		_HasRefreshDate<Season>(modelBuilder);
+		_HasRefreshDate<Episode>(modelBuilder);
+
 		modelBuilder
 			.Entity<MovieWatchStatus>()
 			.HasKey(x => new { User = x.UserId, Movie = x.MovieId });
@@ -389,62 +406,9 @@ public abstract class DatabaseContext : DbContext
 
 		modelBuilder.Entity<Issue>().HasKey(x => new { x.Domain, x.Cause });
 
-		// TODO: Waiting for https://github.com/dotnet/efcore/issues/29825
-		// modelBuilder.Entity<T>()
-		// 	.OwnsOne(x => x.ExternalId, x =>
-		// 	{
-		// 		x.ToJson();
-		// 	});
-		modelBuilder
-			.Entity<User>()
-			.Property(x => x.Settings)
-			.HasConversion(
-				v => JsonSerializer.Serialize(v, (JsonSerializerOptions?)null),
-				v =>
-					JsonSerializer.Deserialize<Dictionary<string, string>>(
-						v,
-						(JsonSerializerOptions?)null
-					)!
-			)
-			.HasColumnType("json");
-		modelBuilder
-			.Entity<User>()
-			.Property(x => x.Settings)
-			.Metadata.SetValueComparer(_GetComparer<string>());
-
-		modelBuilder
-			.Entity<User>()
-			.Property(x => x.ExternalId)
-			.HasConversion(
-				v => JsonSerializer.Serialize(v, (JsonSerializerOptions?)null),
-				v =>
-					JsonSerializer.Deserialize<Dictionary<string, ExternalToken>>(
-						v,
-						(JsonSerializerOptions?)null
-					)!
-			)
-			.HasColumnType("json");
-		modelBuilder
-			.Entity<User>()
-			.Property(x => x.ExternalId)
-			.Metadata.SetValueComparer(_GetComparer<ExternalToken>());
-
-		modelBuilder
-			.Entity<Issue>()
-			.Property(x => x.Extra)
-			.HasConversion(
-				v => JsonSerializer.Serialize(v, (JsonSerializerOptions?)null),
-				v =>
-					JsonSerializer.Deserialize<Dictionary<string, object>>(
-						v,
-						(JsonSerializerOptions?)null
-					)!
-			)
-			.HasColumnType("json");
-		modelBuilder
-			.Entity<Issue>()
-			.Property(x => x.Extra)
-			.Metadata.SetValueComparer(_GetComparer<object>());
+		_HasJson<User, string>(modelBuilder, x => x.Settings);
+		_HasJson<User, ExternalToken>(modelBuilder, x => x.ExternalId);
+		_HasJson<Issue, object>(modelBuilder, x => x.Extra);
 	}
 
 	/// <summary>