remove old tv program

pandora/tv/tasks.py

@@ -2,7 +2,7 @@
 # vi:si:et:sw=4:sts=4:ts=4
 from __future__ import division, print_function, absolute_import
 
-from datetime import timedelta
+from datetime import datetime, timedelta
 
 from celery.task import periodic_task
 
@@ -16,3 +16,5 @@ def update_program(**kwargs):
     if limit_rate('tv.tasks.update_program', 8 * 60 * 60):
         for c in models.Channel.objects.all():
             c.update_program()
+        old = datetime.now() - timedelta(days=180)
+        models.Program.filter(created__lt=old).delete()