I encourage people to do the same thing that the OP did. If you're thinking of kvetching here about Comcast, you're doing no good. The FCC doesn't read HackerNews. It does, however, read comments sent to it.

You'll want to go here: http://apps.fcc.gov/ecfs/hotdocket/list

and click on:

14-57 Applications of Comcast Corporation and Time Warner Cable Inc. for Consent to Assign or Transfer Control of Licenses and Applications