When I turn on my TV the screen is blurry and screeches really loud - DirecTV

#1
Hang with me here. When I turn on my TV, it will come on but the screen will be blank. It will turn itself off, then back on. This time the screen will be blurry. Then itbwill turn itself off and back on, with the same blurriness and a loud screeching. It does it a few more times before the cable transmission actually goes through and I can watch tv. It's something with the cable box because it doesn't do it when I'm using the Xbox. I called tech support and they were absolutely zero help.

This question, "When I turn on my TV the screen is blurry and screeches really loud," is about DirecTV channels, programming, equipment, and sports.
 
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