Well as it turns out I may need a new TiVo and I'd like to try out the new Elite with four tuners. Do all four tuners really work as well as the two tuner models? Does MRV and all that work okay? I have two Series 3's I'd like to be able to transfer shows back and forth from with the new Elite. No problem? I know the UI is sluggish and I'm fine with using the SDUI too. No problem there. Are there any special deals from TiVo or elsewhere that I should know about before I pull the trigger? Any advice greatly appreciated.