SpongeBob's 10th birthday

Tonight at 8 p.m., Nickelodeon kicks off a 50-hour marathon of "SpongeBob SquarePants" episodes, in celebration of the show's 10th anniversary. Earlier this week, I spoke to Tom Kenny, the voice of SpongeBob, about the character, the show, and the Boston phase of his career. - Joanna

And here, via Nickelodeon, are some SpongeBob programming highlights:

Nickelodeon kicks off the marathon tonight with the premiere of “To SquarePants or Not to SquarePants”, which follows SpongeBob after his square pants have shrunk in the dryer. Unable to find a new pair, he tries round pants, but no one seems to recognize him as SpongeBob RoundPants.

On Saturday, July 18, at 10 a.m. comes the top-10 most memorable SpongeBob episodes as picked by fans on Nick.com. The night will be capped off with The SpongeBob SquarePants Movie at 8 p.m.

On Sunday, July 19, a top-10 countdown of celebrities’ favorite episodes will air at 10:00 a.m. The weekend-long marathon culminates with 10 all-new premieres beginning at 7:00 p.m.