Before I go any further, is the HR24-500 the newest Directv HD DVR? Due to the guides slow response time and smaller hard drive of our beloved HR20-700 I am considering switching over to the HR24-500. To help me consider the pluses and minuses of such a change could someone please list any problems I might encounter with the new HR24-500? As a veteran of Directv including their problem plagued transition to high definition I am hesitant to switch from our HR20-700 since it is such a good HD DVR. This leads to another question. Maybe it is just an illusion but I don't seem to remember our HR20-700's guide being so slow in years past. Is this slowness due to the units age or some other factor? Thanks for your help.