Question: When was the show's pilot episode that John Bliss played Irving Pal in?

<P0-S0> Ned's Declassified School Survival Guide (sometimes shortened to "Ned's Declassified") is an American live action sitcom on Nickelodeon that debuted in the Nickelodeon Sunday night TEENick scheduling block on September 12, 2004. <P0-S1>  The one-hour special movie series finale aired on June 8, 2007. <P0-S2>  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. <SEP> <P1-S0> CID is an Indian detective television anthology series about Maharashtra and Mumbai's Crime Investigation Department, created by B. P. Singh for Sony Entertainment Television India and Sony Entertainment Television Asia. <P1-S1>  The series stars Shivaji Satam as ACP Pradyuman, Aditya Srivastav as Senior Inspector Abhijeet, Dayanand Shetty as Senior Inspector Daya, Dinesh Phadnis as Inspector Fredricks and Narendra Gupta as Dr. R. P. Salunkhe. <P1-S2>  These 5 main characters of the show also share a long-lasting bond by working in the series for almost the same period since its inception on Sony Entertainment Television. <P1-S3>  The location of the series is set in Mumbai, Maharashtra, India. <P1-S4>  Following a pilot episode on 29 April 1997, the series premiered on 21 January 1998 and is the longest running television series in India, having completed 19 years in January 2017, entering the 20th year of its run. <P1-S5>  The show airs on Saturday and Sunday nights at 10:00 pm IST. <P1-S6>  The series aired its 1,000th episode on 27 September 2013. <P1-S7>  The show also re-runs on Sony's sister channel Sony Pal every night at 9 PM IST, and in afternoon slots for classic episodes. <SEP> <P2-S0>  He was also seen in the first episode of "Out of Jimmy's Head". <P2-S1> 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". <P2-S2>  He fondly remembered George Clooney, and how George was so polite and called him "Mr. Bliss" and offered him food on the set of "Intolerable Cruelty", in which they both appeared. <SEP> <P3-S0> A television pilot (also known as a pilot or a pilot episode and sometimes marketed as a tele-movie) is a standalone episode of a television series that is used to sell the show to a television network. <P3-S1>  At the time of its creation, the pilot is meant to be the testing ground to gauge whether a series will be successful, and is therefore a test episode of an intended television series. <P3-S2>  It is an early step in the development of a television series, much like pilot studies serve as precursors to the start of larger activity. <P3-S3>  In the case of a successful television series, the pilot is commonly the very first episode that is aired of the particular series under its own name. <P3-S4>  A "back door pilot", is an episode of an existing successful series, that features future tie-in characters of an up-and-coming television series or film. <P3-S5>  The purpose of the "back door pilot" is to introduce the characters to an audience before the creators decide on whether they want to pursue a spin-off series with those characters or not.