I have had two Motorola HD DVRs from Verizon since 2007 and was always disappointed they only held about 21 hours of HD content.
Well, I just replaced one that had been rebooting a lot more no reason and in its replacement, I got one that now holds something like 80-90 hours of HD content. There was no upcharge for expanded hard drive or anything like that.
Did I just get lucky or do they all hold that amount these days and I should replace my other one too? Sorry, don't have the Model # infront of me.