Interactive tv application MHEG5

We require an MHEG5 application developed that will make use of the return channel available on the freeview HD and freesat platforms.
The application is not over complex containing approxamatley 6 or 7 scenes/pages on ability to pull content into scene via return channel.
Full details will be given to winner on completion of NDA.
This will if sucessful lead to further mheg projects been developed and deployed.