I've been rather baffled and slightly irritated that PBS insists upon listing Downton Abbey as Masterpiece Classic in TV listings, when we all know that people are looking for Downton Abbey.
Wil Wheaton recently had the same complaint about Sherlock, which is listed under Masterpiece Mystery.
I don't understand why PBS does this or what they think they gain by listing popular TV shows under a less popular generic name, but I have an idea for how to stop them:
Everyone contact their local PBS station and promise to pledge money next pledge season if they start listing these things in a normal way. Then, as soon as we see our favourite programs being listed under their actual title, donate. If they don't, don't donate (even if you normally do).