For those of you have been tracking TiVo prices for years, could you please shed some insight on when we might expect the company or retailers to slash the price of the XL4? Perhaps around Thanksgiving/Holiday season time? I'm thinking of investing in a XL4 before the fall TV season begins for the quad tuner capability. I currently have a Series3 with lifetime subscription that has been upgraded to record 300HD, but it only has 2 tuners. The unit also requires 2 cablecards, regardless of whether they are single or multistream, which adds an additional $50/yr to the cable bill. As much as I love TiVo (I jumped aboard the bandwagon with my the highest capacity Series2), I'm also a savvy shopper and usually only buy a product that I want when I feel I'm receiving a really sizable discount or great deal. If I get an XL4, I'm probably going to want lifetime service for it, and those numbers really add On a related note, does the XL4 require only 1 multistream cablecard for all 4 tuners?