When was the show's pilot episode that John Bliss played Irving Pal in?
John Bliss: John Bliss (October 8, 1930 – February 28, 2008) was an American actor known for playing the role of the 8th grade Social Studies teacher and former Principal Irving Pal on "Ned's Declassified School Survival Guide". Ned's Declassified School Survival Guide:  The series' original pilot episode aired on September 7, 2003, without many of the current version's main characters, and it was ordered to series by Nickelodeon in early 2004.
September 7, 2003