taxicast
n.— «Slightly more than half the taxis in New York City are now equipped with touch-screen video monitors.…News briefs, also known as taxicasts, are updated three times a day, but less time-sensitive features are changed once a week.» —“Taxi TV, Brisk as the Traffic You’re Stuck In” by Alessandra Stanley New York Times Dec. 15, 2007. (source: Double-Tongued Dictionary)