While older TiVo’s can be hooked up with Comcast cable service for limited functionality, high-definition (HD) TiVo digital video recorders (DVRs) are fully compatible with Comcast cable service. Customers who want to use a TiVo with Comcast service can do so in two ways. They can buy a TiVo HD or TiVo Premiere and have Comcast install a CableCARD into the TiVo box, or they can sign up for a Comcast TiVo box that comes as part of Comcast’s Triple Play package. Writer Bio