Call Comcast and threaten to reduce your plan.
Just called Comcast and requested that my TV be dropped from my account, but keep my internet running. With this move, my internet costs would go up, because I would no longer be on a dual service plan. So the net savings was going to be only $3/month. But he did say that he could reduce my monthly bill by $15 a month for the next 6 months, and $10 a month for the 6 months after that. No reason for the discount, outside of me saying I need to reduce costs. I get to keep basic cable in this deal. One theory is that this discount is equivalent to the cost of sending a tech out to disconnect the TV portion. Although you would think they would be able to do this from the office. At any rate, I can now easily rationalize starting up a Netflix account… at least for the next year.