The TiVo Twitch - Hidden amidst this lackluster NYT review of a digital radio recorder is the first published mention I've seen of "the TiVo twitch." I can empathize completely with the newly diagnosed condition, common to DVR users, who

Having become addicted to the seven-second replay button ... are often seen reflexively pressing a nonexistent seven-second replay button, even when they're not in front of the television. Their brains helplessly fire the deeply ingrained "Let me catch that again" command when they're listening to the car radio, enduring a flaky cellphone connection or savoring a hard-won apology from a spouse.

It happens to me all the time while listening in the car, but I'm not so afflicted that I do it during live conversation.