http://www.businessinsider.com/china-is-forcing-its-biggest-cantonese-speaking-region-to-speak-mandarin-2014-8
"reports in neighboring Hong Kong said the province's official broadcaster Guangdong TV was planning to quietly switch most of its programming from Cantonese to Mandarin on September 1."
I wonder if this is simply pot stirring from HK in order to create a distraction.
If not, and if Beijing really are forcing Guangzhou TV stations to switch to Mandarin it will certainly be interesting to see what happens next ...