said by NHHD99:Can you have a "anyroom" DVR setup using the Tivo XL4 in one room and a separate Comcast supplied DVR in another room?
The Comcast supplied DVR will not be able to view shows recorded on the TiVo XL4 and the TiVo XL4 will not be able to view shows recorded on the Comcast supplied DVR. You would only be able to view shows on the DVR that recorded the show. For "anyroom" DVR use, you would need specific "anyroom" DVRs from the same company either all TiVos or all Comcast DVRs.