Spongebob Squarepants 25th Anniversary 2024. The 15th season will consist of 26 episodes,.  — spongebob squarepants is celebrating the 25th anniversary of the animated series with nickelodeon, and its kicking things off with spongebob and patrick hosting the nickelodeon kids'.

 — spongebob squarepants is renewed for its 15th season, which will mark the show’s 25th anniversary in 2024.  — nickelodeon is celebrating spongebob squarepants’ landmark 25th anniversary with a panel that will take fans down to bikini bottom and beyond for a.