All of my YouTube uploads are available on my channel, which you can access from the link above, but I have catergorised them here into the BBC Micro Music Demos, TV Adverts from the Latter part of the 20th Century, Music Clips from Soundfonts and Midi Files, TV Clips/other stuff and Slideshows.
I have also written a detailed breakdown of my YouTube channel.
UPDATE: Howard Jones' tweeted a link to my cover of New Song!
BBC Micro Music Demos
Using the great BeebEm I have captured and uploaded videos of all the music demos on YouTube.