For the first time that I can remember The Emmy Awards have moved from their traditional Sunday night home to Monday night. From people I spoke to this could be a one time thing, especially if the ratings don't deliver huge numbers. A few years ago The Emmy Awards and other major awards shows have for the most part started airing the broadcast live on the west coast because viewers on the west coast were able to find out who won all the awards and the ratings started to drop. On a Sunday afternoon at 5pm, people on the west coast will sit their butts in front of the television and watch the show. Those same people are not going to leave work early to watch the show live though and there certainly won't be Emmy parties at their house. This is going to lead to people getting the results from the internet and not bothering to tune in when they get home.
Another big issue is with the studios themselves. Most shows are working right now. Most shows don't work on Sundays so the actors and producers could spend all day on Sunday getting ready and partying all night long and show up to work on Monday with a reduced schedule or in about half the shows, just take the day off. That is a day of course that crews don't get paid if they are not working.
Now, with the show being aired on Monday, it means that no one is going to shoot or work on Monday because they have to get ready and Tuesday is going to be a disaster because studios hate the idea of not being able to work for two consecutive days and that is also two days crew probably won't get paid.
Another issue is that the Video Music Awards are airing on Sunday. Do people really want to watch award shows on consecutive nights? The audiences do not exactly overlap, but there is a significant number who would normally watch both, but do those people who would overlap want to park themselves in front of the television to watch back to back nights of awards?