Some of us were probably thrown by you referring to what you want as commercial skipping -- which has a particular meaning to this community. I.E. jumping over a commercial as if it was never there. Only possible of course with recordings.
Commercial substitution or blocking, would be another thing. It's an interesting concept, and certainty preferable to watching commercials, but not part of Channels DVR.
Another way to look at it though, is you could watch the content that would be inserted during commercial breaks before watching a recording of a news show, and then watch the news once it's been processed for commercials.
Having said that, if you're happy with what you have, then why switch?