This television remote control is sometimes called a zapper.
zapper definition by Webster's New World
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.
- something, esp. an electronic device, that zaps
- remote control (sense )
zapper definition by American Heritage Dictionary
- A destructive device, especially one that destroys by means of electric current or radiation: a bug zapper.
- A remote-control device for switching a television set on and off and for changing channels.