I can't pull in many AM stations here (except at night, when I get mainland Chinese ones almost like pulling in shortwave!), but I recently learned that the main AM station I like to listen to --probably the best of the few English-language stations here-- is actually broadcasting now in AM STEREO! I have to rig up an AM stereo receiver, to give that a listen!
On the sad side, there are subtle (and not-so-subtle) signs that the government has insidious plans to either shut down or greatly alter the station and its management, probably because it is a free-speaking station that is perhaps more outspoken on certain issues than the Mainland Central Government is comfortable with. Not exactly censorship, but clearly there are some behind-the-scenes struggles and differences of opinion about the station, and I fear for its longevity in any form that I'll want to continue listening to. But so far, they remain a decent station and a visible token reminder that we live in a "one country, TWO systems" environment here. The government cannot and will not be too obviously seen to be doing anything too harmful to the station, as it would hurt their image and the image of Hong Kong, perhaps too much... but they will patiently and persistently try to accomplish their ends in more subtle (if not devious) ways, no doubt.