This article mentions shows the steps involved in handling remote key events in a Tizen TV environment. This will show the developer the steps that needs to be followed when handling an event from a remote
Packaged web applications is a web standards specification from the W3C. They are also called widgets. These are the same as UI widgets, but the difference being that, instead of just code components, they are entire web applications under a single package. The specification provides a way to list the files inside a package, setting metadata, compression methods etc to the package.