Comcast: if you don't subscribe to cable TV, we won't sell you high-speed internet

What’s interesting is that all other things being equal it’s actually in Comcast’s interest to increase speeds. Because the cable lines are a shared medium, roughly, if you have 100 customers sharing a link then if you double their speeds and they don’t substantially increase their usage, you’ve just freed up the bandwidth on the line for another 100 customers.

So… I wonder if they’re restricting these increases to television service customers because they’re testing if those people are less likely to expand their usage (like netflix video streaming or over the top television like sling or directv now).