When Sammy starts choking at the Seder dinner, Susie asks frantically if anyone can perform mouth-to-mouth resuscitation. However, since Sammy has not passed out, she does not need mouth-to-mouth. What she needs is the Heimlich maneuver.
The "Theory of 77" advanced by Bush admirer Len Dunkel states that every 77 years there is a great president: Washington, Lincoln, Franklin D. Roosevelt and George W. Bush. These four presidents, however, weren't in office every 77 years. The theory would apply to them if the number of years were 72 (1789, 1861, 1933, 2005) or 73 (1789, 1862, 1935, 2008), though the 72 year figure was the only viable one at the time this episode was released.
At the very end of this episode, Larry walks outside his house, opens the gate and picks up the paper. He begins to read a story about the man he accused of stealing his paper as he walks back toward the house. He clearly walks several steps past the open gate. The final shot is from overhead and the gate is closed behind him.
At the end of the episode, when Larry reads in his newspaper the article about the doctor re-attaching some guy's hand, the newspaper article repeats the same sentences (about 4 or 5) over and over again.