This was certainly intentional as Samsung has a site dedicated to their Samsung AdHub that includes ads on Smart TVs:
http://www.samsungadhub.com/pr...
Here is the type of advertising they sell to Smart TV users (lifted directly from the page above):
PIA - Premium Interactive Advertising
PIA is an advertising area located in the Smart Hub, Samsung SmartTV’s home screen that all users have to visit in order to access SmartTV contents. Ads displayed in PIA will be shown to all Samsung SmartTV users, every time they access Smart Hub. If the users clicks on the PIA ad, a full screen landing page expands, delivering more information with greater interactivity!
3D - World's First 3d advertising
The first 3D advertising on connected television. A truly differentiated TV advertising experience through 3D advertising is a new and unique way to reach viewers.
In-app - available on thousands of TV applications
With more than 3,500 applications, Samsung’s content ecosystem is robust and attractive.
In-app advertising provides developers with a new method to monetize on their content and marketers with a new way to reach consumers.
Together with standard static banners, we are offering Pre-roll Video Ads and App Launch Roll Ads.