Trigger - New Comment on any video in a YouTube Channel

I'd like to have a trigger, that fires when a new comment is posted on any video in a specified channel.
Right now you offer a trigger that fires on new comment on a specific video. My request is to fire on new comment on any video in a configured channel.

From looking at the API docs, there isn't a single request that can handle this. Instead it looks like it may have to do multiple request. First to list all the videos in a channel, then to get comments for each video.

Having an ability to trigger on any new comment allows me to clean notification emails out of my inbox and to set up to do tasks in my task manager so I can respond timely.

API Doc: https://developers.google.com/youtube/v3/docs/comments/list