Not to kick a dead horse, but yeah, most commercial beers are force carbonated in a bright tank and then bottled off of that. Many are filtered, some are not. But most commercial beers are not bottle conditioned. If they're not filtered, there can sometimes be a thin layer of sediment that forms anyway, and it's often not even noticeable. But some commercial beers ARE bottle conditioned like most bottled homebrew is (many Belgian brewers, and American-brewed Belgian style beers, are bottle conditioned), and those will definitely have sediment. However, pros, being very good at what they do generally, are able to keep sediment low and very compact. A good example is Sierra Nevada Pale Ale. It's bottle conditioned, and has sediment in the bottle, but you can often pour the entire bottle without disturbing the sediment. Good luck trying to achieve that though, as even other commercial bottle conditioned beers can pour sediment if you don't' watch it.