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		| So, you do need a cable o satellite box in order to have High definition channels. | 
	
 Okay, now that's just sad coming from a TV set company.....
Please advise as to DIRECTION the front (narrow end) of the antenna is pointing.  A large all-channel antenna such as that will be quite directional. 
Troubleshooting tip:  Bypass all that cr... er, stuff, and run a single cable temporarily to a single TV set.  Program it to see what you can get.  Once that is successful, then and only then, start integrating the rest of the cable distribution scheme.