Patent ID: 8559795

Claim:
A method of digital television recording comprising: receiving a content item at a first Personal Video Recorder (PVR); determining whether to transfer the content item based on at least one of the following: groups to which a user is known to belong; user purchase history; user recording history; and broadcaster requirements; and synchronizing the first PVR to a mobile PVR, the synchronizing comprising: updating an electronic program guide (EPG); updating conditional access information; and transferring the content item from the first PVR to the mobile PVR only upon a positive result of the determining, wherein the EPG is cached on the mobile PVR to allow a user to book a recording of a program or a series of programs when the mobile PVR is not connected to the first PVR; and after booking a program or series of programs on the mobile PVR when the mobile PVR is synchronized with the first PVR the mobile PVR sends a booking request to the first PVR to instruct the first PVR to record the program or series of programs.