WCAU had not just TK-42s but was pretty much full turnkey RCA in the late '60s - surprising for a CBS O&O. RCA Broadcast News from June 1969. Story starts pg. 24:
https://www.worldradiohistory.com/AR...ws/RCA-142.pdf
(And elsewhere in that issue is the wrapup from the 1969 NAB show that highlights the new TK-44A cameras and TCR-100 "cart" carousel some of you may be well familiar with.)