Here is a special program on Chinese New Year food celebrations made by the A Bite of China team. Unfortunately, despite the claim in the title on YouTube, there are no English subtitles - only Chinese. But I think it's still worth a look. It's beautifully filmed food porn!
It shows clearly the huge diversity between regions of China, but also the common themes. It does tend to concentrate on the countryside, where the traditions are more preserved and diverse.
The section from 14m 55s to 23m 50s is filmed around these parts and, among other things, shows the making of the Kou Rou ( 扣肉 kòu ròu ) I mentioned in my first post in this topic.