Northland seems to be the biggest operator with any significant analog systems left. Here's a recent clip someone uploaded to YouTube.
View: https://www.youtube.com/watch?v=BLr2mk2ffII
As for where I am in upstate NY, Spectrum has had us all-digital since Spring of 2018. Gotta pay 8.99 per...
MSG to allow Channel 2 to air Sabres game - Sabres & NHL - The Buffalo News
Looks like one game will be on WGRZ this week, for whatever that's worth. Expect to be bombarded with "Switch to DirecTV" ads. :/
To be perfectly correct, if your TV has a QAM tuner, you do not need a set top box to receive the *basic* channels (NBC, CBS, ABC, FOX). Since you say they are old CRT's they most likely don't have QAM tuners, and you will need set top boxes.