The Valeyard wrote:
A few years ago, DWM had an interview with a designer on the original series, whose name I can't remember. In it, he was touring the standing sets, and lamenting that during the original series, they could never leave things up. Plus, they have more money to spend on sets today.
That would have been Barry Newberry, whose first work on the series was on the remount of the first episode (ie, he had to rejig Peter Brachaki's sets from the original version, including the TARDIS, to avoid the production problems that had partly led to a remount being necessary), and his last was on the 5th Doctor/season 21 story The Awakening, 20 years later.