Thank you for using the answers forum! That's a great question! There are no current applications for any Smart TV. Also, the web browser in any Smart TV will not allow you to install the SlingPlayer plug-in. If you would like to watch from a TV, we recommend using a connected device.
An example of a connected device would be a Netgear Neo TV or a Western Digital TV. They are both small devices that connect to your HD TV via HDMI cable. The device has the SlingPlayer application built-in, as well as youtube, netflix, and other streaming players. Basically, a connected device turns your HD TV into a Smart TV.
Below is a link from Slingbox.com that tells you all of the supported connected devices:
Have a great day!
The Sling Moderation Team