Microsoft Silverlight is not compatible with smart TVs. According to the information on Microsoft's website, the plug-in can be installed on the following platforms:
Windows - X86 or x64 (64-bit mode support for IE only) 1.6-gigahertz (GHz) or higher processor with 512-MB of RAM
Macintosh (Intel-based) - Intel Core Duo 1.83-gigahertz (GHz) or higher processor with 512-MB of RAM
For more information visit the website of the developer.