It's not as far out as you might think. But they will build a relationship with those hotels and ask them to hold certain weekends early. They won't actually book until closer and even then the bookings won't be finalized until they know how many people are coming that will need rooms. You would be surprised how few full time network employees are on the broadcast team. It's usually just talent and a few others. Everybody else is one day contractors from various local stations.