I've modified fordlawnmower's script with bits from this one to include length and format it to a human readable format, here's the pastebin for anyone that's interested (thanks RaZ and Fordlawnmower!!)
http://pastebin.com/LR41DzFs(OLD SEE EDIT NOTE)
EDIT: I've updated it to clean the titles of videos, using code from both scripts again; v2 is here:
Thanks for for your new Version, but it seems like it misses a lot of YT-Links in Channels. For me it works only of ever 3rd/4th-Link.