Yea go get cable and a motarola hd dvr and then ask that same question.
That is what I currently have. A Time Warner Cable (TWC) Motorola DCT6416 III DVR. Time Warner quite generously gives me 13 HD channels at no extra cost. I can add 4 more HD channels for only $5 a month more. I can only use one output from the DVR at a time, so I can't record to a DVDR or even a VCR without giving up my HDMI connection. The USB, SATA, and Ethernet ports are all disabled, "Not supported" according to Motorola, so I can't add extra storage, nor even move unwatched recordings elsewhere to make more room. When we record a 30 minute SD show, and the DVR is at 50% or more, it will sometimes jump to 100% and keep giving us warnings that our disk is full and we must make room to record scheduled programs. If we delete that 30 minute show, it will drop back down to 50%. We saw the same TV as ours at a friend's house with Direct TV ... and were amazed at the difference in HD quality. It made our TWC look like ... well, not quite HD. It still looks nice, but not quite close to what we saw at the friend's.
My Direct TV gets installed this coming Friday and I can't wait. Getting the Plus HD DVR plan with currently 35 channels of HD, the HD-DVR on which ALL ports and outputs work, and the two extra SD boxes for the two bedrooms which are not used very much, for the first year will actually be lower priced than the TWC plan we are now on. Granted, after one year it will go up about $15 a month above what we are currently paying TWC, but then again .. who knows how much TWC will jack up their prices again in that time. We used to pay $40+ for this TWC plan, it is now up to $68, it just was increased again. I think the $15 a month is well worth the much better quality and additional channels. The only negative I see at this time is the difference in having to pay for any service calls if needed. That part does bug me as I am supposedly leasing/renting the equipment and believe that anything leased like that should be covered. But again ... TWC ... it will be a pleasure to say Goodbye!