According to reports, Sumner Redstone is weighing a few options as he attempts to restructure his large debt load. The media mogul may sell his 1,500-screen National Amusements theater chain, and has also indicated that he would be willing to sacrifice his CBS Corp. (CBS: sentiment, chart, options) stock. However, Redstone's stake in Viacom (VIA: sentiment, chart, options) is reportedly not up for sale.

In total, Redstone is said to be juggling $1.6 billion in bank debt, and the outspoken businessman has already been forced to sell $200 million in non-voting CBS and VIA shares to satisfy lenders. At issue is the value of Redstone's theater chain -- while some analysts estimate its worth at $500 million, he has asserted that National Amusements' value "well exceeds its debt."

While Viacom shares are fractionally higher today, CBS is down 1.7%. Analysts at Jefferies & Co. today started coverage of CBS with a "hold" rating, joining the majority of brokerage firms in their skeptical opinion. According to Zacks, the TV and media firm has garnered just 5 "buy" or better ratings, compared to 9 "holds" and 1 "strong sell." During the short term, uncertainty over a potential stock sale by Redstone could continue to weigh on CBS.