Since this person is causing interference in the VHF band, you can not
only call your local police about the noise ordinance, you can consult
with the FCC and file a complaint there if you have to. You are in
most cases obligated to complain to them directly first, so that they
cannot claim being "unaware" of the situation.

I know just the type you are dealing with, and I empathise. If
authorities won't respond to this, petition your neighbors and his
for a formal complaint to the mayor's office if you have to. Be sure
to include the TV interference in the complaint, and send a copy to
the FCC.

Keep making consistent complaints relentlessly, even have the officer
see you first so they can hear what you hear. Tell them about how
many times you have complained about this and how there has been no
compliance. If police simply will not acknowledge the public
nuisance, go to the mayor, go to the FCC. The more people complain
about it, the more they have to do to stop it. Look ion your phone
book's white-pages government section for possible hotlines that can
act most directly toward this problem.

If worst comes to worst, document the noise level on camera along with
the TV interference, and possibly a hidden camera as you inform them
of the problem (calmly and non-confrontationally). Then you can
document their failure to comply after a reasonable request. Getting
that noise-level reading on tape is golden. Then once you have gained
irrefuteable evidence of them being a public nuisance, consult a
lawyer with what evidence you have gathered, including statements
from any neighbors, or at least a signed petition (easier to get
signatures than statements, yet statements are more powerful because
those willing to make a statement are usually irate enough). Build
your case and you just might get damages for it, but don't base your
case on that. The idea of legal action on this is to stop the
nuisance, not to gain reparations from it....

Willful negligence is still a crime, and at this rate, that's what it
looks like you have. Gather any evidence you can and seek legal
advice after the third complaint to police and after at least one
complaint to them directly. If you should casually run into an
officer with a moment, consult them for a possible course of action
pertinent to your state/county/jurisdicton.

If they fail to comply after such a case has been tried against them,
it's not only proven willful harassment, but also contemptuous of a
court-order, which carries heavy fines. At that point you might be
able to recover punitive damages..

Just be the jaggernaut advocate for everyone around him and do what
you can. As hard as it is, get the law on your side and your noisy
neighbor will have no choice but to buy a set of headphones instead.