SpongeBob SquarePants is a character who first appears in Mario and Luigi's Stupid and Dumb Adventures. The episode he appeared in was S3E2 where Mario is teleported to the SpongeBob SquarePants dimension and nearly drowns trying to grab the remote.
He was originally created by cartoonist, Stephen Hillenburg when the show was in production in 1999.
The series airs on Nickelodeon but it has aired on other channels in other countries, such as YTV in Canada, NHK Educational TV (formerly Nickelodeon Japan, when the channel shut down in 2009, and Animax on the NickTime block) in Japan and Nickelodeon Germany (formerly Super RTL) in Germany.
On some occasions from the original show that still runs, SpongeBob wears glasses, like for Jellyfishing (for protection) or for reading. These are similar to those worn by his portrayer, Tom Kenny.
SpongeBob has appeared on a few pictures on iCarly.com.
SpongeBob is considered the most popular character on Nickelodeon.
Logan probably hated SpongeBob back in 2007, probably due to SpongeBob's decline in quality, because in "Wii Games "2007"" and "Gamecube Games "2007"", he called the Spongebob games (Even the ones by Heavy Iron!) bad, and Timber Creek, the first competitor to be rejected on "American Idol Mario Edition", is a Spongebob plush.
It was revealed in the episode from the series, Love That Squid, that SpongeBob is allergic to tulips.