Complex sentence: She is best known for her role as Sam Puckett on the Nickelodeon sitcom "iCarly" and is currently reprising her role in the spin-off series "Sam & Cat".
Split into simpler sentences: She is best known for her role as Sam Puckett on the Nickelodeon sitcom "iCarly". She will be reprising her role as Sam in a new spin-off series called "Sam & Cat".