While services like X1 may help keep video customers in the fold, Comcast has other ways to discourage cable cutting, such as capping data usage on its broadband network. Internet entertainment alternatives to cable TV are broadband hogs, so making people pay for data based on usage could curb cord cutting.

Just last week, Comcast announced it was in several markets to test capping strategies. Currently, Comcast caps data usage at 250 GB a month. It's considering raising the cap to 300 GB and imposing fees of as much as $10 per 50 GB on subscribers who exceed their cap.

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