Lancaster CRT factory @ 12:20 is currently multi-use, built during WW-2 to manufacture CRTs for radar, later tv CRTs, transmitter power tubes, industrial power tubes, etc. Still today, many an obituary in the Lancaster paper lists of RCA as part of a proud employment history. Sometimes a job title is even mentioned.
I was always impressed by the wood cabinets RCA made at the Monticello plant @ 14:50, along the former Monon RR line, scroll down.
http://monon.org/bygone_site/bygone/monticello.html