diff --git a/clients/radarr_db_client.py b/clients/radarr_db_client.py
index 2282283..060f20e 100644
--- a/clients/radarr_db_client.py
+++ b/clients/radarr_db_client.py
@@ -175,7 +175,7 @@ class RadarrDbClient:
         Returns:
             (date_iso, source_description)
         """
-        # Query for earliest import event - handle both numeric (3) and string ('downloadFolderImported') formats
+        # Query for earliest import event - PostgreSQL uses INTEGER EventType (3 = import)
         import_query = """
         SELECT 
             h."Date" as event_date,
@@ -183,12 +183,12 @@ class RadarrDbClient:
             h."EventType" as event_type
         FROM "History" h
         WHERE h."MovieId" = %s 
-            AND (h."EventType" = 3 OR h."EventType" = 'downloadFolderImported' OR h."EventType" = 'movieFileImported')
+            AND h."EventType" = 3
         ORDER BY h."Date" ASC
         LIMIT 1
         """
         
-        # Fallback: earliest grab event - handle both numeric (1) and string ('grabbed') formats
+        # Fallback: earliest grab event - PostgreSQL uses INTEGER EventType (1 = grab)
         grab_query = """
         SELECT 
             h."Date" as event_date,
@@ -196,7 +196,7 @@ class RadarrDbClient:
             h."EventType" as event_type
         FROM "History" h
         WHERE h."MovieId" = %s 
-            AND (h."EventType" = 1 OR h."EventType" = 'grabbed')
+            AND h."EventType" = 1
             AND h."Data" IS NOT NULL
         ORDER BY h."Date" ASC
         LIMIT 1
@@ -346,8 +346,7 @@ class RadarrDbClient:
             MIN(h."Date") as earliest_import
         FROM "Movies" m
         JOIN "MovieMetadata" mm ON m."MovieMetadataId" = mm."Id"
-        LEFT JOIN "History" h ON m."Id" = h."MovieId" 
-            AND (h."EventType" = 3 OR h."EventType" = 'downloadFolderImported' OR h."EventType" = 'movieFileImported')
+        LEFT JOIN "History" h ON m."Id" = h."MovieId" AND h."EventType" = 3
         WHERE mm."ImdbId" IN ({placeholders})
         GROUP BY mm."ImdbId", m."Id"
         """