I am trying to set up the Slingbox 500 with Grande Communications TiVo T6 box but my T6 model is not listed in set up. I have tried guessing similar TiVo models but have not been able to get one to show a dvr button at all. Would like to see my on demand button too, but only reason I bought Slingbox was to watch shows I already recorded when I am not home. Any help would be appreciated. T6 model is TiVo multi room dvr where I can record 6 shows at one time.