I'm not terribly impressed with Your_Neighbor's level of discourse either, and I tend to usually be pretty liberal, but I actually think he (she?) does have somewhat of a point here.
I think the US should think about ending support for PBS. Not because of its nonexistent liberal bias, and not because it sucks up all that much in federal dollars (it doesn't), but because it's not something the government needs to be in the business of doing anymore. PBS made some sense back in TV's infancy when TV was broadcast on the airwaves and there was very limited choices. Now that you have Internet and cable, and analog TV is ceasing to exist, the need for PBS is much less clearcut. If PBS disappeared tomorrow, I feel pretty confident that Sesame Street would survive on Nickelodeon or a similar network, and that CBS, History Channel, etc. would still offer programs of similar quality to what PBS offers.
NPR, on the other hand, I think should stay. Unlike TV, there is nothing on the radio waves that comes close to the level of intelligence and the interesting news programming you get on NPR. Philly is lucky to have KYW, which at least offers radio news (although their reporting is drastically inferior to WHYY's), but most cities have nothing but conservative talk and sports on AM, and music on FM. There are some rural areas where NPR is just about the only station that comes through, period! NPR still provides quite a valuable resource.
In general, my philosophy is that there are certain things government does best and certain things private sector does best. In schools and prisons, government control provides a clear benefit and usually works out better than outsourcing. In manufacturing widgets, the US wisely decides to avoid the Soviet Union model and lets the private sector compete for the widget business, with some regulation. I just think that TV now falls closer to the manufacturing-widgets side of the spectrum.
Which isn't to say we should give up public control of the airwaves. If nothing else, that's what allows us to fine NBC when they show Janet Jackson's bodacious ta-tas
.