Complex sentence: Silverman first gained notice as a writer and occasional performer on "Saturday Night Live" and starred in and produced "The Sarah Silverman Program", which ran from 2007 to 2010, on Comedy Central.
Split into simpler sentences: Silverman first gained notice as a writer and occasional performer on "Saturday Night Live". She starred in and produced "The Sarah Silverman Program", which ran from 2007 to 2010, on Comedy Central.