Abstract: Personal video recording including identifying a message point in operation of a PVR and transmitting a message. Embodiments include associating a message type with the message point and selecting, in dependence upon the message type, a message to be transmitted. Embodiments include receiving a response to the message; selecting, in dependence upon the response, a command to be executed; and executing the selected command.

Abstract: Automated personal video recording on a personal video recorder, including recording shows, each show having an original compression level; further compressing a recorded show to a new compression level, the new compression level being higher than the recorded show's original compression level, thereby making available free space; and recording at least part of a new show in free space made available by further compressing the recorded show. Embodiments include recording a show having a compression level and increasing the show's compression level while recording.