In case you haven't heard, that self-appointed guardian of public decency known as the "Parent's Television Council" (headed by "Friend of Newt" L. Brent Bozell III) came out with their list of "The Top 10 Most Offensive Shows on Network Television"; our Family Guy was rated #2...
"2. Family Guy (Fox/not ranked last season) Fox's Family Guy was unbelievably foul. This low-rated, raunchy, animated series centered on a couple, their two teenagers, and their precociously evil infant son. In its first full year, the show's creators managed to include nearly every conceivable obscenity, and references to every imaginable sexual perversion from incest to necrophilia. Series staples included nudity and references to pornography and masturbation. One episode this spring featured Peter Griffin giving his adolescent son his entire stockpile of pornographic magazines. The fact that Family Guy aired during the family hour makes it that much worse. Institutions such as the church and family were held up to ridicule on a near-weekly basis. Fortunately, The Family Guy was not picked up for next season (sic)."
You can read the full list here:
http://www.parentstv.org/publications/reports/2000toptenworst.html
(For some reason, two of my other favorite network shows "Norm" and "Drew Carey" also made this list; guess I'm just plain evil...)