diff --git a/app/db/migrations/20240627230956_create_episodes_table.php b/app/db/migrations/20240627230956_create_episodes_table.php
index f59c956..92fa751 100644
--- a/app/db/migrations/20240627230956_create_episodes_table.php
+++ b/app/db/migrations/20240627230956_create_episodes_table.php
@@ -50,6 +50,7 @@ final class CreateEpisodesTable extends AbstractMigration
               ->addColumn('length', 'integer', [ 'signed' => false ])
               ->addColumn('description', 'text')
               ->addColumn('explicit', 'boolean', [ 'default' => false ])
+              ->addColumn('serial_number', 'integer', [ 'signed' => false ])
               ->addColumn('channel_id', 'integer', [
                   'signed' => false,
                   'null' => false
diff --git a/app/src/Domain/Entity/Episode.php b/app/src/Domain/Entity/Episode.php
index 573f941..7635ce2 100644
--- a/app/src/Domain/Entity/Episode.php
+++ b/app/src/Domain/Entity/Episode.php
@@ -2,6 +2,7 @@
 
 namespace Slovocast\Domain\Entity;
 
+use DateTimeImmutable;
 use Slovocast\Domain\Entity as EntityTrait;
 
 class Episode
@@ -15,15 +16,48 @@ class Episode
         private string $link,
         private int $length,
         private string $description,
-        private bool $explicit = false,
+        private int $serialNumber,
+        private bool $explicit,
+        private DateTimeImmutable $publishedDate,
+        private string $episodeType,
     ) {
         $this->duration = $this->parseDuration($this->length);
     }
 
+    public function getTitle(): string
+    {
+        return $this->title;
+    }
+
+    public function getLink(): string
+    {
+        return $this->link;
+    }
+
+    public function getLength(): int
+    {
+        return $this->length;
+    }
+
+    public function getDuration(): string
+    {
+        return $this->duration;
+    }
+
+    public function getSerialNumber(): int
+    {
+        return $this->serialNumber;
+    }
+
+    public function isExplicit(): bool
+    {
+        return $this->explicit;
+    }
+
     /**
      * @TODO Figure out how to parse second to HH:MM:SS
      */
-    protected function parseDuration(int $length): string
+    public static function parseDuration(int $length): string
     {
         $hours = floor($length / 3600);
         $minutes = floor($length / 60) % 60;
diff --git a/app/src/Domain/Entity/Transaction.php b/app/src/Domain/Entity/Transaction.php
new file mode 100644
index 0000000..486fc40
--- /dev/null
+++ b/app/src/Domain/Entity/Transaction.php
@@ -0,0 +1,31 @@
+<?php
+
+namespace Slovocast\Domain\Entity;
+
+use Slovocast\Domain\Entity as EntityTrait;
+
+class Transaction
+{
+    use EntityTrait;
+
+    public function __construct(
+        private string $code,
+        private string $type,
+        private int $total,
+    ) { }
+
+    public function getCode(): string
+    {
+        return $this->code;
+    }
+
+    public function getType(): string
+    {
+        return $this->type;
+    }
+
+    public function getTotal(): int
+    {
+        return $this->total;
+    }
+}
diff --git a/app/src/Domain/Repository/Episode/EpisodeRepositoryInterface.php b/app/src/Domain/Repository/Episode/EpisodeRepositoryInterface.php
new file mode 100644
index 0000000..d6862c5
--- /dev/null
+++ b/app/src/Domain/Repository/Episode/EpisodeRepositoryInterface.php
@@ -0,0 +1,21 @@
+<?php
+
+namespace Slovocast\Domain\Repository\Episode;
+
+use Slovocast\Domain\Entity\Episode;
+use Slovocast\Domain\Entity\Channel;
+use Slovocast\Domain\RepositoryInterface;
+
+interface EpisodeRepositoryInterface extends RepositoryInterface
+{
+    public function get(int $id): Episode;
+
+    /**
+     * @param Channel $channel
+     * @return Episode[]
+     */
+    public function getFromChannel(Channel $channel): array;
+    public function create(Episode $episode): Episode;
+    public function update(Episode $episode): bool;
+    public function delete(Episode $episode): bool;
+}