Over the past few decades, Christmas has come earlier and earlier. By November there are decorations and festive fare everywhere. How has the 'Christmas creep' evolved? Guest: Carole Cusack, Professor of religious studies at the University of Sydney

Australians and Brits like to complain about the "Americanisation" of the English language, but Professor Ben Yagoda says that language has in fact been flowing more obviously the other way. In recent decades, Americans have adopted countless British (and Australian) expressions, from...