We'll be totally honest here: we love TiVo. TiVo DVRs of every vintage are scattered throughout the Engadget editorial ranks, and Series3 units are our preferred hardware for HD Netflix streaming and Amazon's nascent HD Video on Demand service. And, well, using a TiVo is just fun in a way that no other DVR ever is -- those booping noises still provoke smiles all around.But here's the thing: it's been ten years since TiVo first introduced the Philips-built HDR110 at NAB, and whi