It's impossible to say, because streaming video is affected by much more than just the device you stream the content to. And the video content is likely going to be fairly low resolution, and trying to scale that up to 1080p is going to look like crap. The best you could hope for out of the PS3 is that it will make it at least watchable with a couple truckloads of post-processing applied liberally.
I would say you're getting your hopes up for something that is destined to be a disappointment whether you go with a PS3 or Mac Mini. Try taking a YouTube video sometime, and play that on your TV. It'll look awful, and that is about what you can expect from other sources.
Hi there! I'm on the fence for upgrading to a PS3. I already own a xBox 360 and Wii, but would like a machine that I can use to stream web video to my 55" 1080P LG. I already know that Hulu is turning their backs on basically everything except actual computers. But does anyone have first hand reports of how the PS3 browser handles web video from actual TV network web sites? Fox, NBC, etc? If the browser on the PS3 handles them well, then maybe not having Hulu is fine, especially at $299. Otherwise I'll spend a bit more and get a Mac Mini. Thank you!

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