In what year did 'The Simpsons' premiere as a half-hour series?

What is the name of Homer's boss in 'The Simpsons'? What is the name of the Simpsons' next-door neighbor? What instrument does Lisa Simpson play? What is the name of the clown on 'The Simpsons'? In 'Family Guy', in which fictional town do the Griffins live? What is the name of the talking dog in 'Family Guy'? Who created 'Family Guy'? In which state is 'South Park' set?