This is the digital billboard that greeted Labour Party delegates as they arrived at Brighton for their annual conference.
The digital billboard animates, whilst on a red background, to outline how Caroline Lucas, Green Party MP for Brighton, is in favour of:
“Saving the NHS, Fighting Austerity, Railways in Public Hands, Scrapping Trident.”
As the screen turns green, the billboard says “Brought to you by the Green Party.”
The final screen displays a photo of Caroline Lucas MP and reads:
“Welcome to Brighton – Home of the True Opposition in parliament p.s. Labour is down the hill on the right.”
A great (and helpful) pun that finishes off a nice piece of ambush advertising.