On the PC running iRacing, run the GridCast Broadcaster app. It reads the race, feeds your overlays, and is your control surface during the show:
- scenes and paging through standings
- replays and flags
- showing and hiding graphics
- the telestrator, spotter guide, live telemetry, and the director room
When it opens, the Broadcaster needs two things: broadcast access on your account, and at least one published overlay on your channel. See Software & Downloads.