Blame to tata sky is just one...
They are promoting tata sky+hd all the time...which is worth 6400 rs box...
Now if they have problem (conversion to mpeg4, isro, foreign satellite), we can not wait at 12 hd channels for whole life. It has been 2-4 years wait for many of us. And last six months after so much of media hype on 29th sep 2012, it is unethical to remain mum on future plan.