Hi Jess, first of all thanks for the quick replay,
I have already visited https://developer.kaltura.com, it contains no information regarding channels and/or their connection to categories,
I tried looking into matedate because you referred to it in the answer above, but in the linked documentation is just information on how to upload or download files..
Nothing regarding channels...
I need to get a list of channels, and I couldn't find it anywhere 
Its like the whole channels section is entirety different from the category's.
Dor.