Some are simple things; for example the UK uses 220 V 50 Hz for domestic power, so we may have to change over our power outlets for the normal plugs (assuming that's what they went with, but think that's typical for European designs) so we can just plug in things like laptops, vacuums, whatever.
Also, if we have any domestic regulations for environmental considerations or similar that may need to tweak some things. Not aware of anything, but that's the kind of thing they are looking out for.
Overall it will probably look basically the same, with maybe minor differences visible on the mast for different equipment selection, but you still need to make sure all the fiddly bits can fit in the box, and route the cabling, open the cabinets, and everything else that comes with that.
And for Colin, totally sympathize with wanting to storm the TBS. I was joking with my wife that we should make tshirts for the four bureaucratic horseman of the apocalypse for Public service week; there was some debate but we landed on TBS, PSPC, FIN and INAC (or whatever they are called) as the candidates.