This article is from the The Simpsons FAQ, by Ondre Lombard wakkojr@nospam.wcat.com and Andrew Gill superluser@mail.rit.edu with numerous contributions by others.
The current production staff at "The Simpsons" has only enough resources to
put together roughly 22 episodes a season. However, for Season Six an
arrangement was made with the staff of "The Critic" to produce two
additional episodes. Those two episodes were given the p-codes 2F31 and
2F32.
Currently, Fox is demanding the production of 25 episodes per season.
In 1994 to 1996, the arrangement was 24 new shows and 1 clip show.
For Season Six, a former writer was called in at the last minute to hack
together 2F33, even going so far as to use a pseudonym - "Penny Wise"
(implying that Fox is "Pound Foolish" of course!) and so the episode was
given the highest p-code available to distance it from the other episodes.
Similarly, the Season Seven clip show was designated as 3F31 - and this
time "Pound Foolish" was even named as the director!
Season Nine saw The Simpsons' fourth clip show, "All Singing, All Dancing"
(5F24).
-> David Silverman admitted to using the alias `Pound Foolish' as director of
3F31. He also directed 2F33, "Another Simpsons Clip Show."
 
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