That evening we were back at what was then known as the RCA Building for the "Tonight" taping.

WSJ: Remembering a time before 'Tonight' left New York

After GE bought NBC's parent RCA in 1986, late-night host David Letterman strode to the then-GE building to deliver a fruit basket to his new owners, complete with a camera crew that filmed him being escorted out of the building.

WSJ: Conan O'Brien, Professional Disparager, Promises Not to Diss his Former Bosses