Who knows this TV wall, hanging TV trim board is what to do, how to do it have this effect, to be affordable

Soundproof Foam Tiles Ceiling Tile Light Fixtures 2X2 Ceiling Tile Lights Led Ceiling Tile Lights Acoustic Ceiling Solutions 12X24 Ceiling Tile 12X12 Ceiling Tiles With Holes Decorative Ceiling Tiles 2X4 False Ceiling Board Alternative To Aluminum Foil Geogrid Cost Per Square Meter Geogrid Alternative Are Solar Cells Recyclable Aluminum Plate Acoustic Barrier Expanded Perlite Insulation Perlite Cryogenic Insulation Acoustic Tiling Perlite Sand Texture Pinhole Spy Camera Green Formwork