TATA Sky offer broadcast satellite television service in India. The service offered by TATA Sky using MPEG-2 and MPEG-4 digital compression technology and transmitting INSAT 4A. Currently, it provide around of 200 channels and some interactive more. It is a joint venture of Tata Group and STAR Group having share of 60% and 30 % respectively. In 2008, Tata Sky offered Tata Sky+ (a Personal Video Recorder service) which allows 90 hours of recording in Set Top Box using MPEG-4. It also launched HD DVR Set Top Box with 500 GB hard-disk. Out of which 380 gb actually usable by customers, which is in Indian market as highest capacity recorder for customers.