Example is: Four s in a d of c & answer is Four suits in a pack of cards. Another example is F N of G B - answer Four Nations of Great Britain. Yes, I think the Capital T V is the title of a book or maybe a film/persons name. All answers start with the word Four - hence the section of clues are called "Foursomes"
So the answer will be something like (and this is just a made up answer as an illustration of the format):
Four Cousins in Sweet Charity (where Sweet Charity is a TV programme)