Simplify the following text for a Grade 10 native English-speaking person.
Original: He is also well known for his portrayal of Geordi La Forge on the syndicated science fiction series Star Trek : The Next Generation and as the host of the PBS children 's program Reading Rainbow .
Simplified: He is probably best known for his role in the popular television series Star Trek : The Next Generation , and as the host of the PBS show Reading Rainbow .