Houses built before World War I often have plaster walls and original “knob-and-tube” wiring, which was installed according to old, outdated electrical code ... box edges to anchor it solidly ...

According to our recent poll, over 1/3 of you have your HDTV cords hidden behind a wall. This may be a big violation of the National Electric Code that could void your insurance coverage.

You can also find this info on the wall mount’s box. The next thing to consider is the flexibility you want your TV to have while mounted. If you want to be able to see your TV from other rooms ...

"The clearance from the box wall to the installed device or equipment shall not be less than 1/2 in." Lupacchino is a senior design engineer with Gaylor Electric, Inc. in Noblesville, Ind. and serves ...