do they even show up at any station in the game or they'r just for the show, can be eneabled or diseabled for nothing, if that's true, DTG.. bruh...
They show up on routes in the same region. Any UK posters should appear on UK routes, German posters on German routes and so on... You build up a collection of them through completing mastery and you'll have more poster variety appearing on routes. I've only unlocked the WCML South ones so far but have spotted a few around Euston and Milton Keynes. Just note they only appear on routes released for TSW5. Older routes don't have mastery posters, unless DTG retroactively adds them in the future.
