Filled [REQ VID] David Bowie: Five Years" doc

Hi, I am wanting the David Bowie: Five Years documentary that BBC has been screening :

It's the proper 90 minute documentary ( there has been 60 minute versions around & a reasonable 720p )

I am after this doco in the Best Quality ( 1080p ) that someone can get & post here :

I am confused as to why this one has never been available as a Web-DL ( all the other Bowie doco's have been available as proper Web-DL's in 1080p )

Finger's Crossed someone can help me :

Thanks