televiewer

noun

1. (rare)A person who watches television.

   “This article deals with the comparative psychology of the cinegoer and the televiewer.”

   “Consequently, the televiewer sees with her own eyes what is seen by another eye.”

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.”

3. A device for viewing things remotely, along the lines of a television.