user4970: Is it just to do with the image sensor tech of the time or is it a deliberate effect? What is it called?
A lot of music and pro videos shot during the 00s have that misty, glowing, saturated and grainless look throughout the entire videos, which you don't see any more.
Just a few prominent examples:
Usher - U Don't Have To Call - 


Professional ad for a facial workout DVD - 


Outkast - Hey Ya! - 


Pussycat Dolls - Don't Cha - 



user5172: I don't know how much of this contributes to the effect, 
but it seems that they are applying a blurred copy of the footage with very low opacity.
Similar to this: http://digital-photography-school.com/4-easy-photoshop-techniques-to-make-your-pictures-pop

4970: <p>Is it just to do with the image sensor tech of the time or is it a deliberate effect? What is it called?</p>

<p>A lot of music and pro videos shot during the 00s have that misty, glowing, saturated and grainless look throughout the entire videos, which you don't see any more.</p>

<p>Just a few prominent examples:</p>

<p>Usher - U Don't Have To Call - <div class="youtube-embed"><div>
                <iframe width="640px" height="395px" src="https://www.youtube.com/embed/3AszPTJXIgM?start=0"></iframe>
            </div></div></p>

<p>Professional ad for a facial workout DVD - <div class="youtube-embed"><div>
                <iframe width="640px" height="395px" src="https://www.youtube.com/embed/AsdWl5Ns2aU?start=0"></iframe>
            </div></div></p>

<p>Outkast - Hey Ya! - <div class="youtube-embed"><div>
                <iframe width="640px" height="395px" src="https://www.youtube.com/embed/PWgvGjAhvIw?start=0"></iframe>
            </div></div></p>

<p>Pussycat Dolls - Don't Cha - <div class="youtube-embed"><div>
                <iframe width="640px" height="395px" src="https://www.youtube.com/embed/YNSxNsr4wmA?start=0"></iframe>
            </div></div></p>
 5172: <p>I don't know how much of this contributes to the effect, 
but it seems that they are applying a blurred copy of the footage with very low opacity.
Similar to this: <a href="http://digital-photography-school.com/4-easy-photoshop-techniques-to-make-your-pictures-pop" rel="nofollow">http://digital-photography-school.com/4-easy-photoshop-techniques-to-make-your-pictures-pop</a></p>
