“Lucky there’s a family guy,” a chorus of friends, neighbors and relatives sing about the lunkhead Peter Griffin in the razzle-dazzle opening of each episode of “Family Guy” — more than 400 and counting. This animated sitcom produced for Fox by 20th Television Animation about a none-too-typical household in suburban Rhode Island — father, mother, son, daughter, talking baby and talking dog — has recently celebrated an astonishing 25 years on the air. And from the moment it debuted in 1999,... Read this story