Create a Focal Point
The television and the fireplace have been competing with each other for years. The flat panel has helped to bring the two together. But sometimes it is not always feasibly possible. Here is an example of how the fireplace is the focal point and the television secondary.
This works because the wall is a dark color so the black of the television blends in. If the wall were white the television would jump out. So consider a way to visually create the fireplace as the focal point and make the television blend.