Blackboard Joke: I am not smarter than the President.
Couch Gag: The family poses on the couch for a series of family portraits. In the 2006 and 2007 portraits the family all looks the same. In 2008 Homer is missing from the picture. In 2009 he is replaced by Lenny. In 2010, Marge is replaced by Carl. In 2011 Lenny is replaced by Jimbo and Marge is back replacing Carl. In 2012 Homer is back in robot form, replacing Jimbo. In the 2013 the rest of the family is replaced by robotic version of themselves.