The joint venture is a first for both CBS Studios International and Reliance Broadcast Network, known until last week as Reliance Media World, as they try to tap India's fast-growing TV market.
Television is the largest segment of India's entertainment industry, with revenues of 257 billion rupees ($5.6 billion) in 2009 -- nearly three times what the much-hyped Bollywood film industry pulled in, according to KPMG.
KPMG says India's TV audience has grown to 500 million viewers -- still just 60 percent of households -- and the number of channels has mushroomed from 120 in 2003 to over 460 in 2009.
Reliance-ADA Group is run by Anil Ambani, one of India's richest men.
Another subsidiary, Reliance Big Entertainment, last year paid $325 million for a 50 percent stake in Steven Spielberg's DreamWorks Studios.
The companies signed a preliminary, nonbinding agreement Sunday to establish a 50-50 joint venture to operate a portfolio of TV channels
and hope to close the deal within a month, Reliance said in a June 20 letter to Indian stock exchanges, according to this AP story carried in the New York Times.
They would begin with an English language general entertainment channel that would distribute primarily existing CBS content via cable or direct-to-home satellite broadcasting
and later explore owning or operating channels in Hindi and other regional languages, the company said.
CBS's hit shows include ''CSI,'' ''America's Next Top Model'' and ''The Oprah Winfrey Show,''