Before you do anything else, UNPLUG THE TV!!
We don't want anyone to die while building this project. It is supposed to be a fake ghost after all.
With the TV unplugged, it is probably safe to open up the housing. However, keep in mind that some of the capacitors may still hold a charge for several hours after the TV has been turned on.
Once the housing is open, take look inside. Look for large empty spaces where you could fit a walkie talkie. Old CRT (cathode ray tube
) TV's will give you the most space to work with. However, it may also be possible to use newer flat screen TVs.