2017 Vista 29VE TV removal?

[Chrisjen]

We just bought the 2017 vista 29ve. There wasn't an owners manual. This is our 4th mh and as usual trying to learn all the new to us features and locations of everything. I'm a bit stumped as we want to replace the insignia tv with a new LG smart tv. Figured out how to get the old one off the wall and it has the old red, white and yellow connectors for input etc. The new TV has 3 hdmi ports, a USB port. I'm trying to figure out how this is going to work. There is a drop down cabinet above the door way with the coaxial cable and a duplex plug in. Also the drop down has a gas strut that isn't connected and the door is very heavy and I would assume it should be connected somewhere but I can't see where it might have been before. Is this the cabinet where a DVD or Blu-ray would be stored and hooked up? As you can tell I'm not very techy so any help would be appreciated. So far all the manuals I've been able to look at don't even mention the cabinet...