rabbit73.
Thanks for the detail explanation. I'm attaching the picture of my place including the location of the antenna. I also PM you my home address just now. FYI, The red dot on the roof is exactly where I placed my outdoor antenna. If you zoom the picture, you can actually see the antenna there. I pretty much used the old dish network pole that was there with the house. I just removed the dish and replaced it with my antenna.
Gosh, its so unfortunate that there's a strong local FM signals that's affecting the TV reception. I noticed it lately, when I watched the local PBS channel at 9-*. The strange thing is channel 11-* for CW is not affected at all.
The trees that blocked most of the signal are the trees across the freeway. Nothing I can do about it I guess.
Out of curiosity, is there anyway I can resolve this issue with different hardware without having the move the antenna? Like buying a different kind of antenna or I'm pretty much SOL on this one?
Thanks again for your help rabbit73. You are amazing. :-)