Just wanted to point out that Google Maps and Earth have a full street view of the inside of TVC, probably taken in the era around 2009-2013. It's basically a 360 degree view of anywhere in the building, including the newsroom. Just go onto Google Maps and drop the street view 'yellow man' somewhere in the building. Apologies if this has been mentioned recently, just wanted to point it out incase anyone was interested.
I can tell you exactly when that was done - February 2013. I had one last visit to TVC that month with a friend who was freelancing there at the time and we passed the Google cameraman many times in the labyrinth of corridors. Unfortunately, I've yet to find myself on the Street View images, though.
Although seeing TVC in February 2013 was absolutely fantastic - because practically everything except parts of BBC News had already moved out, we essentially had the place to ourselves to wander around. It was probably the best visit I ever had. But that in itself also made for the saddest visit I ever had - because I had seen it in the early 2000's when it was full of life. So that last visit was quite emotional - but exciting at the same time.