Yeah, everyone prefers sans-serif for those uses. It's all about DPI. Low-resolution displays (e.g., every single monitor or TV that a consumer will have his hands on) can't render serif fonts particularly well. Too few pixels per character to get the shape in there without being too blurry or just too cluttered.
Serif fonts are easier to read, but only on mediums that can render them in fine enough detail. Which today pretty much means they're only good in print or for very large font sizes.
DPI on a few devices is getting to around the 200 range. Once consumer monitors are close to the 300 DPI range I imagine many people will end up preferring serif fonts.