Televisions come in all shapes and sizes, and with the advent of new technology, they can seem quite intimidating when something goes wrong. Modern televisions offer a huge number of different amenities, which may lend the impression that something is broken if you haven't set them up correctly. Before getting on the phone with a repairman, however, it pays to perform a few basic troubleshooting steps. Specific brands have their own instructions on troubleshooting their TVs, but some steps are applicable to all kinds of TVs.
Placement
A number of potential problems can arise based on where your TV is placed. If you don't have a cable or satellite system, take special care where you place the antenna; it may get poor reception if you don't tilt it at an ideal angle. Furthermore, the presence of nearby electronic devices----such as computers, speakers and hair dryers----may cause interference with the TV. Place any computer monitors or loudspeakers several feet away from it, and don't run them while you're watching the TV. Televisions also generate heat as any other electrical appliance. If you've placed it somewhere that blocks its vents or prevents adequate ventilation, it will likely overheat and stop working.
Remotes
Remote controls require a direct line of sight to the sensor on the TV in order to function, Most of them have a limited range as well, and if you pass beyond a certain distance, they won't work. Assuming the batteries are fresh and the remote isn't obviously damaged, find the sensor on the TV and make sure it's clear of anything that might be blocking it. Alternately, change your position so that there's no furniture in the way, and make sure you're close enough to the set for your remote to work.
Missing Channels or Shows
All televisions sold in the United States after January 1, 2000, are required to have V-chip features, which let parents block objectionable content. Many others have channel lock features that let you block entire channels (either because you don't want your children watching them or because you never watch them yourself). If you find yourself unable to watch a particular show or channel while every other show or channel comes in fine, you have probably activated one of these features. Correct it by accessing the menu on your TV (usually by pushing a "Menu" button on your remote), then searching for the Parental Control, V-Chip or Channel Lock feature. In some cases, you may need to enter a password to do so (though only if you have set that password to begin with). Once you access the pertinent feature, it should allow you to disable the lock and watch your show as normal.
Tags: make sure, show channel, your remote
