Despite last minute nerves from presenter Lizzie Greenwood, everything went smoothly.
"I was unbelievably nervous but everything went according to plan," she said.
"It was a real honour to be the first Newsround presenter on the new channel."
Record-breaking fix
There was a moment of panic in the gallery when a vital tape machine broke down just minutes before the programme went on air.
But the day was saved when the faulty machine was swiftly replaced in a record-breaking 35 seconds.
New look
The bulletins on the new digital channel CBBC are the biggest change for Newsround since it began nearly 30 years ago.
They also bring in a new look for Newsround.
Producer Sinead Rocks was delighted with the way it's going so far. She said: "It was a fantastic team effort and after months of preparation it was great to get on air!"
Regular updates
The bulletins start early in the morning at 7.30am, 8am and 8.30am, and continue at lunchtime at 12.30pm, 1pm and 1.30pm.
Plus Newsround Lite will give you all the latest on celebs at 6.25pm.
The first edition features interviews with Pop Idol winner Will Young and Liverpool star Michael Owen.
And don't forget Newsround on CBBC One at the usual time of 5.25pm!
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