I've got a decent sized, quality antenna in my attic, aimed properly, etc.
but still can't get all the VHF channels as clearly as I would like. I live
in southern California, and have a clear look at Mt Wilson, our local
transmitter source which is about 25 miles away. I do not want cable or any
of the equivalents, and cannot put a full antenna on the roof.

What methods and/or equipment is there for improving my reception? Gain
boosters, high tech antennas, etc?

- Magnusfarce