Simplify the following text for a Grade 7 native English-speaking person.
Original: He also made appearances on various television shows , including Nash Bridges , The Pretender , The Practice , The X-Files , ER and The O.C. .
Simplified: He also made appearances on many television programs . Some shows that he appeared on include Nash Bridges , The Pretender , The Practice , The X-Files , ER and The O.C.