Simplify the following text for a Grade 5 native English-speaking person.
Original: The series premiered Thursday , September 17 , 2009 , and airs in the 8:00 pm ET time slot . It previously aired in the 9:30 pm ET time slot , beginning with its premiere , but later relocated with its fourth episode .
Simplified: Community first aired on September 17 , 2009 , at 9:30 PM ( EST ) .