The picture here doesn't do justice to this invention... clearly, SIZE MATTERS! The massively oversize universal television remote measures 5"x11"x3/4", and is near impossible to lose. I saw this invention live once, and I had to be convinced it wasn't a toy.
As far as being a functional invention, there is absolutely no question here. It can't be lost, and has large enough keys that even the fattest of fingers can't fumble around with.