If watching on a PC you just add an Adblocker or Script Blocker and no adverts at all
I've got an adblocker running.
Youtube have embedded these in the videos
EDIT: Double checked and ad-blocking was switched off?!
OK, so should block the little ads at the bottom, but not the embedded ads? Will see if that works.
Cheers. Dunno how ad-blocking wasn't on, doesn't seem like the kind of thing I'd remove..