I recently did a Sunbrite outdoor TV with an Atlona HDMI balun. Sunbrite used to have a large cavity on the back where you could put the balun but the new model has a much smaller cavity and the balun doesn't fit. I used a PVC enclosure and put the balun in it. The balun was getting hot so I drilled a couple holes in it for ventilation which helped. I want to think there must be a better way. Thanks in advance for any suggestions.