Interesting, as an American I would always “the” in both hospital examples, yet I would use “the” in the church example exactly as Cat Jones does.
Funny that university is mentioned. We tend to use college/university interchangeably.
But I would say
I go to college (meaning I spend 10 months of my year persuing a degree at an unnamed institute of higher learning, which may indeed be a university or a college)
but…
I go to the college (to have a beer in their pub; it’s cheaper there).
However…
I go to the university
would be context dependent; say I live in Syracuse NY which has a reknowned university, then saying this implies I go to that university to persue a degree. However I could also use this form in the beer/pub example. I would never ever say “I go to university”.
I was at a jazz club in DC earlier this spring and the bandleader got the whole crowd laughing when he thanked his family for coming. He said “They came all the way from the Florida to hear their boy play the jazz music!” And it was the “the” that made the remark so funny.
I believe that was “The One Where Everybody Finds Out,” where Phoebe was hitting on Chandler as a joke because she knew he was in a secret relationship with Monica, and he was hitting on her because Monica didn’t want “her team” to be the one to cave in first. One of the things Chandler said to Phoebe, as best I can recall without cracking open the DVDs and verifying the exact phrasing, was “I’m very happy we’re going to be having all the sex.”
It was hysterical – made me get the laughter right quick, it did.
In my version of American English:
I go to the hospital = I am traveling to that destination for purposes unspecified.
I go to hospital = not used
I go to college = I attend that facility for educational purposes
I go to the college = I am traveling to that institution
Further clarification about hospital visits is with the prepositions at and in:
she is in the hospital = almost always means that she has an ailment requiring treatment
she is in hospital = not used
she is at the hospital = that is her present location, but she is not a patient