Complex sentence: Kenny, Fagerbakke and the rest of the crew have completed four new episodes for broadcast on Nickelodeon in early 2005, and planned to finish about 20 total for the then-fourth season.
Split into simpler sentences: Kenny, Fagerbakke and the rest of the crew have completed four new episodes for broadcast on Nickelodeon in early 2005. They planned to finish about 20 total for the then-fourth season.