are screens similar to dish world possible ?

Sure, this is possible, using roScreen or roImageCanvas components.

- Joel

Thank you very much for the reply....your reply gave us hope and confidence to develop our application.....

please provide us with some sample code snippet which can help us to go ahead with our application development.....

This blog post is probably a good place to start: http://blog.roku.com/developer/2012/10/ ... eo-player/
You may also want to take a look at the customvideoplayer example in the SDK.

Thanks for your reply.....

thanks for your replies... please anyone provide us some sample code snippet which can help us to go ahead with our application

This might help a little bit:
https://www.box.com/shared/static/c46bb964b26f1347a41e.zip

Shows how to display a video on the screen with moving graphics.

- Joel

thank a lot we were able to cutomize our ui
-veni