I thought I'd post this here for anyone wanting to replace their TV. We just bought the boat and one of the first projects was to replace the TV, which didn't have a digital tuner or streaming. I thought it would be an easy project. I was wrong. I assumed the TV was mounted on a standard flush mount. Because it was trimmed so nicely with framing inserts, I assumed it had to have a standard pull-down release for the mount because there was no way to get to a screw release. I tried and tried to find and pull the release. It turned out that the "release" I found was the plastic wire wrap for gathering up extra power cord. There was no mount, presumably to save the cost. The TV was screwed to a plywood panel and the plywood panel was screwed to a frame inside the nicely framed opening. I couldn't see the screws holding the panel until I removed the trim.