Hi, I am planning to buy HD DVR set top box with good DTH services.I am confused between Airtel Digital TV/ Tata sky/ Videocon D2h/Reliance Big TV.And improper details I get from TV,news and their website,all are different. Which is best by service,customer care, increased no. of tamil channels and worth for money.Also which set top box is good and 3D ready. Is it possible to record the program in set top box and transfer to external portable device to watch in another tv of my home??plz write thank you