After the TAPS crew arrives in North Carolina and stop for their dinner break, the restaurant building shown in the establishing shot is actually located next door and to the left of the TAPS office in Warwick, RI. Someone very familiar with the series in early seasons might even notice the One Way sign located in front of and even the "T" on the TAPS sign in the front window of the TAPS office.
At the beginning of the Mordecai House segment, when the crew are discussing investigating it, Jason states, "It's the birthplace of Andrew Johnson, the 17th President", as though he knew this historical fact. However, later, after they arrive at the site and begin the tour, he states, "Andrew Johnson. Wasn't he the 17th President?", this time indicating that he did not know.