Greatest American Dog was created on 2008-07-10.
Greatest American Dog ended on 2008-09-10.
Sadly, there is currently no news on a second season of Greatest American Dog.
Greatest American Waltzes was created in 1963-07.
The Greatest American was created on 2005-06-05.
Mad Dog American was created on 2000-06-06.
Greatest American Dog - 2008 My Dog Can Fly 1-8 was released on: USA: 27 August 2008 Hungary: 29 August 2009
Greatest American Dog - 2008 Dog Swap 1-9 was released on: USA: 3 September 2008 Hungary: 5 September 2009
Faithful Friends - 2008 Greatest American Dog - 2.5 was released on: USA: 14 February 2009
Greatest American Dog - 2008 Top Dog Model 1-4 was released on: USA: 30 July 2008 Hungary: 1 August 2009
The Greatest American Hero ended on 1983-02-03.
Faithful Friends - 2008 Greatest American Dog 2-5 was released on: USA: 14 February 2009
Right now there are no signs of an upcoming 'greatest American dog'. But there could possibly be one in the future. They only stopped because the first season didn't get as much attention as they intended for.