I do not watch Nickelodeon so I cannot respond to that. My children watch two shows on Playhouse Disney. They are Jo-Jos Circus [which teaches cooperation, counting, rudimentary movement] and Higglytown Heroes[which teaches respect for authority and describes the jobs of various residents of Higglytown, so kids know how to be a hero, too--you know, become a veterinarian or a trash collector, etc.]. I would say they are educational and they are not on PBS. I pay for them. I don't want to pay to see Kofi Annan talking to Elmo about the global community or some other tripe. I get innocent, sweet, respectful children depicted. In their book "Saving Childhood: Protecting Our Children from the National Assault on Innocence", Michael & Diane Medved describe how our children are being bombarded with too much TV. Recent studies show that even if the TV is good stuff, there's just too much being watched by too many children. If you wish to watch PBS, by all means, do it. But there are by no means the only source of educational programs.
The term "bully pulpit" stems from President Theodore Roosevelt's reference to the White House as a "bully pulpit," meaning a terrific platform from which to persuasively advocate an agenda. Roosevelt often used the word "bully" as an adjective meaning superb/wonderful. The Bully Pulpit features news, reasoned discourse, opinion and some humor.