Journey to Planet Earth - 2003 State of the Planet's Oceans was released on:
USA: 18 March 2009
It would have to be Earth, since it is the only inner planet with oceans.
We have two such planets in the solar system, which are Mercury and Venus. There are also several other planets that have no oceans but which are cold.
Journey to Planet Earth - 2003 State of the Planet's Wildlife was released on: USA: 2006
There is only one planet known to have significant bodies of liquid water that cover a large portion of its surface, and that is Earth. Other planets in our solar system, like Mars and Europa, have evidence of liquid water in the past or under their surface, but not as extensive as Earth's oceans.
A Journey to Planet Sanity - 2013 was released on: USA: 6 December 2013
Journey to Planet Earth - 2003 Future Conditional was released on: USA: 2005
Journey to Planet Earth - 2003 Seas of Grass was released on: USA: 2003
Journey to Planet Earth - 2003 Rivers of Destiny was released on: USA: 2003
Journey to Planet Earth - 2003 The Urban Explosion was released on: USA: 2003
The name of the 8th planet is Neptune. Also known as a roman god who controlled over the oceans and seas.
Journey to Planet X - 2012 was released on: USA: 20 April 2012 (Tribeca Film Festival)
Journey to Planet Earth - 2003 State of the Ocean's Animals was released on: USA: 2007