I've watched commercials with no sound in the past, and it's made me hypothesize about things like how the commercials are produced. I tend to think that the commercial is viewed with no sound during production to see how effective the visuals can be alone, and I find sometimes that the commercials are more effective with no sound.

The first commercial I watched was a REMAX commercial, where people were walking by properties available to buy or rent, and then a copy of them would walk up and kick them in the rear. It was a very strange commercial to watch with no sound, and the meaning is lost without it. I imagine the meaning is in the speech overlay.

I found Papa Johns commercials are just as effective with the sound off. All they really need to do is show you those picture perfect pizzas to make you hungry.

Next commercial I saw was for a Dyson vacuum. It wasn't really a change from having the sound on, except you couldn't hear Dyson's British accent.

I saw a commcercial for the Philadelphia Lottery with a beaver or some such creature talking and going on a date with a female beaver (or whatever), interspersed with random talking by a middle-aged man, it was surreal and weird without sound, and the only reason I knew what it was about before it said so at the end was because I'd seen the character before.

Last commercial was an Allstate commercial which I recognized first because of David Haysbert and then because of the ALLSTATE INSURANCE label on one of the many black-and-white photos. I think the use of a prime-time television celebrity is effective because I didn't need to see anything else to know what the commercial was for.