largest city with no AM transmitter?

[Kevin Vahey]

I have always wondered why Detroit has the directional signals they do
  WXYT ( the former WXYZ ) should have had a better signal than it was
given



On 9/13/07, Dan.Strassberg <dan.strassberg@att.net> wrote:
 Detroit is the complex-array capital of North America
> (with Toronto a close second) and it's REALLY tough to find land for
> eight-, nine-, and ten-tower arrays in major cities.