I know all that, obviously. What I meant was I thought that the network was now all PME, as in they have been adding lots of earthing points so all the TN-C-S is now PME by default. Can't remember where I read it, might have something referred to on here once. Might have also been slightly unofficial.
New earthing points are added when the network is extended, altered or repared and on new connections. The kits I use come with an earth electrode which is like steps said kinda like a long pigtail connected to the N/E and sticking out of the joint.