This is, to state the obvious, a huge mess that will require a major concerted effort on Comcast's effort to fix. But if the task of fixing Comcast's horrendous customer service and training infrastructure is hard enough right now, it will get even harder if Comcast merges with Time Warner Cable, another cable behemoth that has a reputation as bad, if not worse, than Comcast's. All told, the potential for an epic customer service disaster resulting from the Comcast-TWC merger is high enough that it could even make Sprint's experience with Nextel look tame.