Any chance that Court TV could be labeled as a NEWS channel? Doesn't seem to come up as NEWS when I do a search.
It's not the channel that gets flagged, but rather the programs on the channel. Since the tags are part of the guide data, that's not something Channels has control over.
If you would like to curate your own categories, you can certainly do that. That way you can have your own categories, and fill them with the channels of your choosing: