Unfortunately none of the HD TiVos currently work with DirecTV. The Series3 and TiVo HD (and HD XL) only work with OTA and cable services. The HR10-250 from DirecTV doesn't work with any of the new MPEG-4 HD content; there are only a handful of MPEG-2 HD channels still available via DirecTV, and those will likely be going away in the coming year. There will supposedly be a new TiVo-based DirecTV-capable DVR sometime next year, but exactly when it'll be available (and of course, how much you'll get nicked for to get it) is still up in the air. Currently your only practical option if you need something in the immediate future or right now is the HR2x DVRs; I know they're not TiVo, but until the new DirecTiVo appears, TiVo isn't really an option for you. Sorry.