I don't think "tried to use DRM" is an accurate description. They were trying to watch their cable sub on their computer. I did it for years, and it was quite convenient and very high quality, but Comcast slowly encrypted all their offerings, the HD Homerun cable card version was slow to appear, etc., etc. It all just became too much of a hassle and streaming won.
you bought more cable than you needed for your internet connection.
> What?
Cable Internet in the US requires some sort of service to be bought alongside internet. That's usually Basic Cable. My comment was saying that if you bought more than basic cable, you bought more cable than you needed.
Second problem: you tried to use DRM.
> I didn't. The cable company did. And plenty of the TV I am able to record is not available to stream on the same day, if at all.
You can easily get your new via other avenues online. The only exception would be local.