Thanks for your comments.
One thing i want to point out that i can successfully build OpenPLI Kernel for VUUNO but not the complete image, Bitbake complaints about missing kernel source for VU+ UNO. If someone can help me with those, i can continue working on customization.
Since there are no tuners in the box, i would try to add USB DVB-S to this.
Regards,
Adarsh Sharma