Jaihind TV: Language: Malayalam Indian National Congress backed, inaugurated by Congress president Sonia Gandhi.
Kairali TV: Language: Malayalam. CPM backed
People TV: : Language: Malayalam. CPM backed
WE TV: : Language: Malayalam. CPM backed
Sun TV: Language: Tamil. Controlled by DMK’s Maran brothers
Kalaingar TV: Language: Tamil. Came into being after split between the Maran brothers and DMK chief Karunanidhi. Now this is Official Channel of DMK.
Jaya TV:Language: Tamil. Backed by AIADMK chief J Jayalalithaa
Makkal TV: Language: Tamil. Backed by PMK
Mega TV: Language: Tamil Backed by former Union minister and Congress leader KV Thangabalu.
Vasanth TV: : Language: Tamil. backed by Congress MLA and consumer durables retailer Vasanth Kumar, is waiting for Ms Gandhi to do the inauguration honours just like she did for Mega TV.
India vision TV: Language: Malayalam. Its floated by M.K. Muneer, an upcoming leader of the Indian Union Muslim League (IUML)
Captain TV: Language: Tamil. actor-turned-DMDK leader Vijayakanth
If Anyone has more information please post it as a comment, I will add it to the list.