BBC Pop UpPittsburgh, PennsylvaniaBBC News Channel Duration: 30 minutesFirst broadcast: Sat 6th Dec 2014, 00:30 on BBC News ChannelLatest broadcast: Mon 8th Dec 2014, 01:30 on BBC News Channel HDBBC Pop Up heads to Pittsburgh to learn how this once-blackened old steel city is being reborn as a home for political activists and roboticists.GenresFactualBrandBBC Pop Up Source: BBC Online