NEW 20 Hour DVR "plan"?

Got a popup message while watching tv about updating my DVR, which was probably 6 years old. Said Ok. Received new DRV; returned the old one. Before, my DVR had a certain amount of physical space on the hard drive. Now I somehow have a DVR "plan" with only 20 hours of space. If I want more "space" I have to upgrade. I feel like I was scammed and I'm pissed. I'd rather have the old DVR back.