Sun Music is the oldest and most popular Tamil music channel in India, and the only one to be available in HD. It was launched in 2004.
Sun Music HD
An HD feed of Sun Music was launched on 11 December 2011 along with HD feeds of two other Tamil channels (Sun TV and K TV) and the Telugu channel Gemini TV. These were the first regional-language (i.e., non-Hindi and non-English) HD channels in India.