How to make my 720p or low mv's into full hd 1080p

I've just started to download music videos in full hd and i'm now wonder how others do it, do they get it in full hd?
Like recording sky hd and then ripping it or something? i dunno

I have a 720p video but want to convert/render or whatever the word is to make it the best of the best, in full hd without losing the quality or getting it stretched out in 1920x1080 res.

Is it possible?
And how would i go about in doing so?
This would also apply for some movies aswell

 

Just leave it as is. It's as good as it will ever be.

 

I can't because i know it can be better and i want everything i have to be in the best quality so i can also share with others

Does anyone have an ideas on how to do it?

 

You can't. Period.

"...i know it can be better..."

You can't make an image better than the master that you're dealing with. Any resultant image would be extrapolated and suffer some loss.

 

You can't make a Rolls Royce by manipulating Chevy parts!

 

Monster Garage Can

or Scrap Yard Challenge