Comcast Digital box with HD Problems

 

New member
Username: Jeffdaree

Post Number: 1
Registered: Feb-09
I have a cable Modem works great , added comcast digital w/HD to one TV . On Demand looks great , HD looks great, 2-73 look like and out of adjusted antenna , grainy...exception of mabye 2 or three upper channels that are OK at best. Only have one 2 way split at comcast Box. Signal at box shows -7 db . Any answers , they have none.
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