JVC AV-20FD24 will not pick

JVC AV-20FD24 will not pick up the signal from the antenna. I Moved tv from my daughters apt to my home and now it will pick up only 67 , 69, 27, 57, & 25. I am currenty using an antenna on top of the house that my samsung flat panel has no problem getting all the channels from. As a test, I hooked up the jvc to the same antenna connection that the samsunt was on, but the jvc will still not pick up all the channels.