self supporting TV towers

[Kevin Vahey]

I was in Kansas City this week and saw a large self-supporting tower.
I snapped a pic on my phone and sent it to Scott who replied

KCTV channel 5...this is one of the three or four tallest
self-supporters in America, along with WHDH, WITI in Mke, and WTBS in
Atlanta!

Now the question I have is - given what happened to WBZ-TV in Allston
in 1954, why would WNAC-TV go self supporting in Newton when they
moved from Malden.