User blog comment:Seventho7/But what is PG, anyways?/@comment-2008503-20140612141352

There's nowhere which officially confirms Friends as a PG, though. The DVD box sets are unrated (but do have a Canadian Home Video rating of PG, which doesn't mean much as The Boondocks, which is rated TV-MA here and would never fly at PG, also has a Canadian PG).