A:Answer The VESA Mounting Bolt Holes on the LG C9 77 inch Class 4K Smart OLED TV w/ AI ThinQ® (76.7'' Diag), Model # OLED77C9PUA are on the part that protrudes (slight bump-out at the bottom) out on the TV that houses the internal electrical components for the TV. The recommended Wall Mount Bracket in the owner's manual for the TV is the LG EZ Slim Wall Mount for 2019 LG OLED, NanoCell and UHD TVs, Model # OLW480B, but you can also use any third-party VESA compliant Wall Mount that supports the TV's VESA Wall Mount Interface Pattern of 400 x 200mm regardless of type, brand or manufacturer...^IFV