The places I've worked on used multiple generators, more than was required to keep running. Home Shopping Network had 8, 5 of which would keep them on air. That's an extremely reliable backup.
Can you share more about the Home Shopping Network's broadcast infrastructure - that's such an explored little nugget of the world I've never given any thought to before
This is 30+ years ago, they had a halon system. They had calculated the volume of the rooms, including the contents so as to not kill people while supressing fire. So making a hole in a wall, or adding/subtracting anything was a huge production.