Magnavox MRV640 DVD Recorder
The Magnavox MRV640/17 resembles a DVD Recorder but adds three undocumented features.
(1) The clock loses one minute per week, so you don't have the sit through the unrecorded beginnings of TV shows.  (2) It records disks that inexplicably freeze-frame and jump forward when fast-forwarded on playback.  (DVDs recorded on a different DVD Recorder behave normally.) (3)  Nine months following purchase, any new attempt to record a DVD instead display a \\"DISC ERR\\" message.  This last feature relieves the user from wasted hours spent watching recorded shows when he could better spend his time writing this acerbic product review.