Use a standard tape measure to measure the available depth of the entertainment center. Match that number with the depth of the case of the television set. The depth of the entertainment center should be a larger number than the depth of the TV. Add 1 or 2 inches to the number to account for cables that will be plugged into the back of the TV.
Measure the available height of the entertainment center. Add 1 or 2 inches to the final measurement to account for the plastic border on the television set.
Measure the available length of the entertainment center. Add 1 or 2 inches to the measurement to include room to reach the volume and menu controls on the side of the TV.