I've been creating in-stadium elements for the Seattle Mariners since 2013. 
These player intros are shown during each home game as players come to bat.

Depending on when they are played during the game, they often include accompanying LED boards, as seen below. 
Because these are shown often and created for each player, they present interesting technical and creative challenges - I'm always looking for ways to work with the client to create variety and freshness, while still fitting into what essentially has to be a template of sorts. These have also been a great test bed for workflow efficiencies, dynamic text expressions and other similar techniques to help keep per-player versioning time to a minimum.