[Stuart]

I believe they also reconfigured the second set a little by the WNT-era. When that second set was first put in, it had three rear-projection screens. Some time after they took the Sport Today set out in 2005, they added a fourth front-projection screen (that was virtually against the wall) to make the set a bit bigger and allow for more flexible shots.

Whenever you see behind-the-scenes pictures of that studio, it is just incredible the amount they managed to fit in there - absolutely tiny space that managed to make N8 look expansive. Always a bit surprising to be reminded of how stark the difference is between the facilities they had then and now.

N9 was reconfigured again when World moved into N8. It was used for elections and other specials.

Here is a link to a nice 360 degree picture on flickr by Nick Garrod at the time TVC was closing in 2013.
Studio N9

WARNING: Don't click next, otherwise you'll get lost down a rabbit warren of 100s of other great pictures as I did for an hour this morning.