Have to add another vote to get TiVo. I think my friends finally see just how much it improves my TV watching. I would definatley say get a large one. I have an old stand alone 20 hour model, but record everything at best quality because I later extract it to archive to DVD. At best quality I get about 6 hours total space. I need to add another hard drive to mine. I did disable TiVo automatically recording shows I may like, because I don't have the room. At one time I thought 20 hours would be enough.... I had no clue just how much I would use the TiVo. And I must say get the service. I went without it for a couple months and when a new series started it was a pain to manually set up all recordings. And I missed many shows I wanted to record. All the pause rewind stuff still works, you do have to manually set up recordings.