Family Guy in recent times is turning out to be a show which is funny in occasional bits and pieces. And when you put everything together as a 22 minute show, it appears to be below average material.
Take for instance Quagmire's story. There were a couple of scenes that stood out. But overall, the story which goes on to depict a mini drama, where he feels bad for giving up his Anna Li for adoption, and later feels good because she went into a good family would pass for a good PSA, not the politically incorrect comedy show.
Family guy also has the knack of taking certain jokes beyond the overkill point. Here we saw the Flintstones gag which seemed never ending, and the Ronald Reagen one. Stewie and Brian's track was good, and it is partly the reason why I am still watching this show.