From what I discovered from two years ago that TF1, has banned and censored several episodes of Bob L'eponge according to
ina.fr. The only remaining evidence that I could find was from a
French forum where TF1 censored the spikey cleets scene in "SpongeBob Meets the Strangler". Most of these episodes being censored remained lost media.
And as for the banned episodes:
"Ghost Host" (aired on Nickelodeon France on 01/26/2008).
"Rule of Dumb" (aired on Nickelodeon France on 01/27/2008).
"Spy Buddies" (aired on Nickelodeon France on 02/07/2009).
"Sing a Song of Patrick" (aired on Nickelodeon France on 02/08/2009).
"Mermaid Man vs. SpongeBob" (aired on Nickelodeon France on 01/05/2010).
"20,000 Patties Under the Sea" and "The Battle of Bikini Bottom" (aired on Nickelodeon France on 01/08/2010).
"Suction Cup Symphony" (aired on Nickelodeon France on 10/12/2010).
"The Splinter" (aired on Nickelodeon France on 10/13/2010).
"Grooming Gary" (aired on Nickelodeon France on 10/20/2010).
"Krusty Krushers" (aired on Nickelodeon France on 10/22/2010).
"Dear Vikings" (aired on Nickelodeon France on 10/25/2010).
"A Pal for Gary" (aired on Nickelodeon France on 01/11/2011).
"Big Sister Sam" (aired on Nickelodeon France on 02/13/2013).
Idk, but Nickelodeon France has held these episodes after Nickelodeon France launched in November of 2005. Almost all of the airdates for Seasons 1-8 from the French Wikipedia are 100% false as Seasons 1-3 were aired spiradically being part of a series of blocks "SpongeBob and Patrick presents the Best of Nickelodeon," "No Panic!," and "Nickelodeon Afternoons". Season 4 were aired split in half on the weekend of January 27-28, Season 5 was part of a daily marathon daily on February 2009, except for the last bunch and the first episodes of Season 6 in January 2010. Also Season 8 aired earlier on TF1 in January 2013, Nickelodeon France aired it in April, when they completed Season 7 in February.