televiewer

noun3

1. •
   (rare) A person who watches television.

   • This article deals with the comparative psychology of the cinegoer and the televiewer. — 1991
2. •
   An acoustic scanner that generates images of a borehole wall by transmitting ultrasound pulses from a rotating sensor and recording the amplitude and travel time of the signals.

   • In order to determine the orientation of permeable joint zones, the evaluation of the borehole televiewer data allows a precise measurement of the planar discontinuities at the borehole wall. — 1992
3. •
   A device for viewing things remotely, along the lines of a television.