Follow the link below to Volume #91, October 1956, page 29, (pdf page 31) RCA Broadcast News Magazine, and note the cost of building WRC-TV, the "first television station built from the ground up for color broadcasting" was $4 Million. The inflation calculators on Internet indicate that is about $32 Million in todays dollars.
http://www.americanradiohistory.com/...ange-Guide.htm