[YouTube-API] How to see Networks and channels belonging to a network?

This group is being deprecated.. are you using stackoverflow with tag youtube-api now? 

To avoid multiple sets of answer to the same Q, I'll link the SO Q here:

http://stackoverflow.com/questions/12570034/how-to-programmatically-find-out-what-channels-are-part-of-a-given-youtube-netwo

It is not my Q originally, I've just added a 250 bounty as I really want an answer. Thanks all!

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Starting October 15, 2012, this group will stop accepting new posts. We recommend that developers start using Stack Overflow and the Issue Tracker for YouTube API support. More details about this change and relevant links can be found at http://apiblog.youtube.com/2012/09/the-youtube-api-on-stack-overflow.html