Here is a billboard for BBC America that reads, "We claim this space in the name of quality British television." And its' nearby sister billboard...
Here are some transit ads for some of BBC America's programming that reads:
"Gordon Ramsay claims no responsibility for the dining car in this train."
"If you were a time lord, you would be home by now or 700 years ago."
"Ejector seats courtesy of the Graham Norton Show."
"Even the loudmouth next to you would sound better with a British accent."
"My other commute is in a Tardis."