He was spotted lounging on David Geffen’s yacht in St. Bart’s, was seen dining at Hollywood restaurants like Craig’s and Sunset Tower and had a run-in with the comedian Kathy Griffin at the Beverly Hills Hotel’s Polo Lounge, according to published reports.

At the same time, Mr. Moonves and his legal team are gearing up to fight CBS in arbitration for his severance. The network said it would refuse to pay him after determining that he failed to comply with an internal company investigation into his behavior, and even misled investigators. Under the terms of his exit agreement, CBS had been paying Mr. Moonves’s legal fees. The company is not paying his legal fees for the arbitration. Should Mr. Moonves prevail, CBS would have to pay those bills.

For more than three decades, Mr. Moonves had an outsize role in shaping the network television landscape. Before he joined CBS, he was a producer with hits like “Full House” in the 1980s and “ER” and “Friends” in the 1990s. At CBS, he turned a last-place network into the most-watched channel on television.

Then last year, a dozen women told The New Yorker’s Ronan Farrow that Mr. Moonves had sexually harassed or assaulted them. As CBS looked into those claims, it also learned that Mr. Moonves was trying to buy the silence of another accuser by getting her work on a CBS show.

Mr. Moonves had told the company’s outside lawyers that an unnamed actress had accused him of sexually assaulting her more than two decades earlier. But he did not share that the actress’s manager, Marv Dauer, had pushed him to get her an acting role.

Mr. Moonves deleted many of his texts with Mr. Dauer, and gave investigators his son’s iPad instead of his own, according to a draft of the investigators’ report that was reviewed by The New York Times.

As part of his employment agreement, Mr. Moonves was required to comply with any internal investigation. Investigators advised CBS that it would be on strong footing to fire Mr. Moonves for cause, according to the report — a move that would allow the network to avoid paying him the $120 million exit package.