- 'http://livestream.com/accounts/%s/events/%s/videos/%s' % (account_id, event_id, v['id']),
- 'Livestream', v['id'], v['caption']))
+ 'http://livestream.com/accounts/%s/events/%s/videos/%s' % (account_id, event_id, v_id),
+ 'Livestream', v_id, v.get('caption')))