Does the job, but could be better
This is a simple and effective way to keep little fingers away from the buttons - it does the job. However the plastic is a little flimsy - my 8-month old just pulls at the guard and it bends down quite easily. A little more strength and it will snap. The base should also be deeper to make sure it holds well under the TV.
On Parent Units TV Guard Original Plastic Shield, Clear, 18 in.