I attended Mobile World Congress in Barcelona 4 years in a row to film a variety of interviews and roundtables for TIA. It was by far our best opportunity to talk to C-level folks in the telecom industry, like the gentleman featured here, the CTO of AT&T Andre Fuetsch.
We used a Blackmagic URSA 4K between 2015-2017, then switched to a Sony FS7 and A7S after that.