Pretty self explanatory - I'd like the ability to call a bash or python script once a recording is finished.
EDIT - To elaborate a bit further, here is a use case:
The ability to post-process a show after its recording has completed will allow for additional functionality that doesn't currently exist in Channels DVR. Conversion to another format, commercial removal, import into other media managers, etc. are all attainable with other Open Source and Paid software solutions. This would be an easy way to expand the power of the Channels DVR App without having to re-invent the wheel.