A (hacky) Fix for American Dad! series confusion between TVDB and SickBeard

fix_american_dad_sickbeard.diff

diff --git a/lib/tvdb_api/tvdb_api.py b/lib/tvdb_api/tvdb_api.py
index 0970288..b45d619 100644
--- a/lib/tvdb_api/tvdb_api.py
+++ b/lib/tvdb_api/tvdb_api.py
@@ -834,6 +834,14 @@ class Tvdb:
             seas_no = int(float(elem_seasnum.text))
             ep_no = int(float(elem_epno.text))
 
+            # Fixes American Dad! issue from TVDB
+            if sid == 73141:
+                if seas_no==2:
+                    seas_no = 1
+                    ep_no = ep_no+7
+                if seas_no>2:
+                    seas_no=seas_no-1
+
             for cur_item in cur_ep.getchildren():
                 tag = cur_item.tag.lower()
                 value = cur_item.text