Advertisements I have a grandfathered Time Warner plan (The Select Plan) through Spectrum. I tried to upgrade to the Silver Plan but they are telling me that my TIVO w/cablecard won't on their service and I have to get one of their boxes. It's $10 more a month for me to use one of theirs boxes instead of my TIVO. This doesn't make sense to me as I have seen many people saying they can use TIVO with their Spectrum service. Does anyone have and info on this? Are they just lying to me so I'll pay $21 for their box instead of just $2 for a cable card?