Simplify the following text for a Grade 4 native English-speaking person.
Original: Fey reprised this role on the October 4 show , and on the October 18 show where she was joined by the real Sarah Palin .
Simplified: Fey acted in the role again on the October 4 show . She also acted as Palin on the October 18 show where she was joined by the real Sarah Palin .