Fifty years ago this year, Australia was introduced to the madness and mayhem of Hey Hey It's Saturday, and took it to the national heart. It lasted for a whopping 28 years and introduced such segments as 'What Cheese me off', 'Celebrity Head', and 'Plucka Duck', among others, and of course, there were John Blackman, Wilbur Wilde, and who can forget Ozzy Ostrich? Hosted as before, by the unflappable Daryl Somers.