In the video David is having fun on a revolving chair and Ben Schwartz plays various ringtones from his cell phone - his ringtone for David is Never Too Much by Luther Vandross!
Apologies if this video does not play in your country.
The first season of DuckTales will consist of 21 half hour episodes and two one hour specials. The series will make its debut on Saturday 12th August in the US.
Some photos from the video:
DuckTales section of DavidTennantOnTwitter.com