How Newsround has changed over 40 years
How has the way that we make news on Newsround changed in the 40 years we've been on air?
When Newsround launched in 1972, it was only as a six-week trial.
John Craven was the first presenter and he went on to front the show for 17 years.
Back then, there was only one bulletin a day, but now there are more updates than ever - as many as eight on a weekday!
40 years ago there were no computers to help journalists find or write stories like we do today.
Footage was shot onto film reels, as opposed to on digital memory cards - and if you wanted to edit or cut something, you had to physically snip the bit of film reel yourself!
Watch Joe's special 40th birthday report for more.