The Suite Life on Deck is a spin off of the Disney Series the Suite Life of Zack and Cody. This new series follows Zack and Cody and London Tipton on the SS Tipton, they go to classes at the Seven seas High. The ship travels the world to lots of exotic countries and Zack and Cody get up to all types of adventures.
The first season was aired in 2008 in the US by the Disney Channel.

You can find episodes of the Suite Life on Deck at the usual sites:

Televisiononlineinfo.com
Sidereel.com
Yidio.com