I am not sure about mounts built in but we have 2 TVs on sideboards in the house - one the living room and one in the playroom. So these are about head or shoulder height to my 3y old. Sounds like a recipe for disaster but both are on the stands the TV came with (lockable) and we have dedicated TV straps which attach to the back of the TV (built in place on Samsung TVs) and are then attached to the back of the sideboards (screwed into the wood at the back of the sideboard). So the TV is mounted firmly on the stand but is also strapped firmly upright to stop it toppling over. The sideboards aren't special TV ones - just a wooden charity shop one and an ikea one. This works well.