We can probable survive without those two cities.
Just have to move most of Fox News out of New York... They can leave Shep, Beckel, Juan, and Geraldo to report on the aftermath.
We likely would but life as we know it getting national information if we lost Times Square would change drastically. Would not be hearing Rush Limbaugh, Hannity, Mark Levin, national cable for some time unless you live in the city from which they broadcast.
Unfortunately, if signals were repared they'd likely have to go thru Washington DC (which is worse). I can see it now "hate speech no longer allowed on the airwaves".