I am no expert, but I will try to explain A standard TV screen is made up of 480 lines from top to bottom. Retrace lines will only happen on a TV with a regular Picture tube (known as a CRT), they...
For a broken line, the best way to rejoin the pieces is using a blood knot.
For a great demonstration of various knots including the blood knot go to: http://www.animatedknots.com/
click on...
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