[DTV]

The 'NBH-era' sets certainly have aged well though.

I guess it's down to a mixture of the materials used and the quality of the build. Some sets benefitted from involving less scenery movement than their predecessors - NBH-B in particular not suffering from the constant moving of desks and sofas in relation to TC7 which did look rather knackered towards the end.

Very real chance, though, that at least one Barco-style set outlasts all the 2012/NBH-style sets. Plymouth is the only 'full' one left, with London and Tunbridge Wells both counting as half-marks (for different reasons). But there are four proper Barco-style sets still in use.