Sock puppets appear in children's television series where they can be used alone on the puppeteer's hand, without a complex stage or show. Two orange sock puppets named Fu and Fara are used in teaching German children how to read. In the United States, children's entertainer Shari Lewis was known for her television show "Lamb Chop's Play-Along" featuring the sock puppets Lamb Chop, Charlie Horse, and Hush Puppy. Sock puppets are often used because they are less intimidating and scary, and, therefore, very child-friendly.