[zimpenfish]

> That sounds like wrapping a whole bus with an ad.

They were talking about the standard landscape side panels. Didn't make much sense to me either but that was why the bus companies were throwing money at them to get LED panels working (aside from the financial bonus of being able to book multiple ads for the same bus, obvs.)

(As an example of how efficient TFL's advertising swapping was - there was a poster at Deptford Bridge DLR advertising a Gorky exhibition in 2010 that wasn't changed until late 2017/early 2018. And all that involved was opening the street-level case to put in a new poster!)