Credit to Daniel-B for his reply to Youtube-HD-On-PS3-For-Free-Is-It-Possible? here: forum.videohelp.com/threads/330336-Youtube-HD-On-PS3-For-Free-Is-It-Possible. Hope that this may help people here.
To quote: MUZU TV is an Irish owned interactive music Web site featuring free music content legal video sharing Web site. Co-founded by Ciaran Bollard and Mark French, it was launched in Ireland and the United Kingdom on 16 July 2008. Seven million videos were played monthly and there were two million users within one year of the launch, with users creating their own TV channel.
Note: In the first image you see black/white images, it is because I was using VirtualBox, on PS3 they are full of colors.
Current features:
HD support (about 90% of videos on ps3 work with this setting)
Limit number of entries per request (default is 150, it is used to avoid memory fullness and possible crashes)
Browse for videos in any genre or in a specific genre(e.g.: rock)
Top Charts from Muzu.TV
Top playlists from Muzu.TV
Browse for videos from an artist (using search box in Showtime's homepage, you need an external keyboard, there is no Virtual Keyboard yet supported in Showtime)
The plugin is not available yet on Plugin Central but should be very soon. At the moment you should install it putting the ZIP file (UNextracted) in the folder settings/installedplugins on Showtime folder (in FTP).
Note: If in any video it shows "Cpu is too slow..." or "Cell forcing level 4.2...", it is handled by Showtime not the plugin.
another update for showtime, andreas oman integrated samba client. check lonelycoder.com for all information. download from: http://www.jaensch-koloska.de/maximilian/ps3/showtime/showtime.zip or http://www.jaensch-koloska.de/maximilian/ps3/showtime/showtimegh.zip
Showtime PS3 Media Player Repack v3.3.084 Update is Released
PlayStation 3 developer Redsquirrel87 has updated the unofficial repack build of Showtime PS3 Media Player today to v3.3.084 with the changes detailed below.