TiVo Roamio Plus with a Motorola MTR-700 Tuning Adapter from Time Warner Cable in Southern California. Upon connection I received the message: ------- Can't use all tuners The TiVo box has six tuners, but the connected Tuning Adapter supports less than six. As a result, you won't be able to use all of the tuners on your TiVo box. Please contact your cable provider if you would like to use all six tuners on this DVR. ------- Any suggestions? Is there a firmware update I can do myself?