PBS and NPR are far less biased than any of the commercial stations. If you listen to NPR's call in shows, like Diane Rheems, you will hear not two opposing views but nearly every possible view. The hosts on NPR do not hang up on callers or insult them as Limbaugh does all the time, either. If you think NPR and PBS are very biased, you simply have not listened often enough to them. The worst feature of both are those insufferable pledge drives, but they only do those maybe for six weeks out of 52, as opposed to 20-25 minutes of idiotic ads on commercial radio.
Frontline's recent exposé of the Vatican was the best rundown of what is going on in the Church I have ever heard. Apparently, Benedict was simply worn down in his attempts to get the Curia to admit too all the child buggery and abuse over the years and resigned as a result. Commercial newscasts rarely dealt with the Vatican in any realistic manner, even when it was obvious that John Paul was little more than a mumbling vegetable incapable of anything in his final years. If you have not seen this, it is available for watching on your computer. The American Experience documentaries on all manner of topics, such as the Freedom Rides, the financial crisis, Whaling, several presidential biographies, and a huge variety of other topics are infinitely better than the commercial stations have managed to do, and the History Channel and even Nat Geo often do a sensationalist approach to similar topics that are really lacking when compared to what PBS has done.