“At a regular convention, audience reaction is a huge part of the speeches,” Andrew Binns, the event’s chief operating officer, explained. “We needed a way to do that technologically and virtually.”

Faced with a complex problem, Democrats decided to go big, aiming for a solution that has more in common with Netflix, Facebook Live and the cheering fan screens courtside in Orlando’s NBA bubble than the C-Span-style cattle call typical of past national party gatherings.

Over four nights starting Monday, a behind-the-scenes crew of about 400 with operation centers in New York, Milwaukee, Los Angeles and Wilmington, Del., plans to broadcast to the nation hundreds of live video feeds from living rooms, national monuments and stages around the country, according to interviews with three people involved in planning the event.

That includes dozens of speakers who have been mailed video-production kits, with basic equipment such as microphones, lighting and advanced routers, so they can produce and transmit their own shots. Other homebound delegates will be dialed in to quick feeds of the live speeches, so their real-time reactions can be broadcast to the country as if they were in the same room as the speakers.