Originally Posted by tom911
About the only thing I've ever done is add memory. I've spent time on the weakknees site before. Very likely I'd send my TIVO in to them if my HD ever died. Don't need any extra storage space right now (have 400gig between 2 TIVO's and three hard drives, which is plenty for me). The bad thing about TIVO is I record too much, and have to just set things aside and hope I watch them later on. I have movies from last summer I'm just catching up on.
Adding memory is more perilous than adding a hard drive, as there is more likelihood that you'll fry the memory or the motherboard with static, or crack the motherboard by applying too much pressure. I think you could handle a hard drive replacement.
Take a look at the dealdatabase forum on Tivo hacking. When I hacked mine (which included adding a bigger hard drive, as well as a variety of software patches that let me transfer programs to my computer), I recall being directed to a website that had a wonderful, step-by-step, even-an-idiot-like-me-could-follow-it instruction sheet.