Well, considering I spent a great deal amount of time at PBS (as an intern, mostly), I can say that... yeah, this is pretty much true-to-life.
This is pretty much the reason why we stopped having pledge drives after 2005: there was a group of radical homeschool parents (yeah, I was homeschooled when I was in high school), most of whom were Conservative Republicans, who went around spreading their anti-PBS propaganda, actually saying, "Just Say No to Clifford (the Big Red Dog)". They were calling for a boycott for PBS Kids shows, such as CLIFFORD THE BIG RED DOG, ARTHUR, SESAME STREET, BARNEY & FRIENDS, MAYA & MIGUEL, among others, on the grounds that they were spreading the gay agenda, "brainwashing" our kids into believe that being gay and accepting gay people is okay, which, God forbid, we should treat gay people like ordinary people, 'cause, like, y'know, being gay is, like, WORSE that murdering people and such. Needless to say, support did, indeed, DROP, so much so that they raised the minimum pledge amount from $20 to $25 per person, and that didn't even help. Our August 2005 pledge drive, we came in way short of our goal, and as such, they stopped having pledge drives altogether.