I have two series 1 philips tivos that are still kicking with lifetime on both. I only use analog cable and was given a series 3 tivo by a friend who bought them clearanced at Blockbuster. The problem is getting a remote control that works on all three for the same tv. I have the older peanut remote that switches between 2 tivos right now. The remote that came with the series3 is the same one, so the signal should interfere with one of the older series1. I was thinking of buying a slide remote just to control the series3 and using the older one on the series1's as before. Tivo's website says the slide remote only works on series3 and premieres so I think I'm safe. Would this work as I described? Or unless there's other remote recommendations. But I really like the tivo remotes.