I don’t know if this photo of NBC’s KNBH television studios at Sunset and Vine has been colorized, but it looks so natural, I’m guessing it’s a genuine color photo. NBC converted its radio studios to television in 1949, so this shot was taken after that. That black stripe across the top of the building intrigues me. It looks like one of those electronic scrolls called a ‘flashcast’ that relayed breaking news. KFWB installed one around the Taft building at Hollywood and Vine in 1946 so maybe NBC set it up to compete with them?
How that corner looks in February 2021:
The Chase bank doesn’t hold a candle to the NBC building, but at least it does have one of the mosaics that Millard Sheets created.
There was yet another Flashcast in L.A. at the time – a sister to the one on the Taft Bldg., mounted above the third floor of the Warner Hollywood Theatre on the corner of 7th and Hill Streets. The only known images with that Flashcast were in a film that was made in early 1950:
https://archive.org/details/pet1067r4
As for the one above the NBC studios, I wonder if that was made by rival Naxon Telesign.