By Sheila Dang

(Reuters) - CBS Corp's <CBS.N> quarterly results topped Wall Street targets and CEO Les Moonves delivered an upbeat message to investors about the media company's future on Thursday, without addressing allegations of sexual misconduct against him reported last week.

At the start of an analysts conference call on CBS earnings that was also broadcast on business television network CNBC, the company said it would not take questions about Moonves' reported behaviour or its legal battle with majority shareholder Shari Redstone over control of the U.S. media group.

Shares of CBS were little changed after the close of regular trading on the New York Stock Exchange.

Moonves said the company's digital business, which includes Showtime and CBS All Access streaming services, will grow to 16 million domestic subscribers by 2022, up from a prior forecast for 8 million subscribers by 2020.

CBS, whose shows include popular sitcom "The Big Bang Theory," said advertising revenue during the second quarter rose slightly to $1.32 billion (1.01 billion pounds).

Moonves said political advertising revenue so far this year is nearly double the amount from this time in 2014, during the previous midterm election.

Overall revenue increased to $3.47 billion from $3.26 billion a year earlier, beating analysts' average estimate of $3.46 billion, according to Thomson Reuters I/B/E/S.

CBS said affiliate and subscription fees revenue, which includes revenue from cable, satellite and streaming TV providers, rose to $989 million from $848 million a year before.

Net income from continuing operations was $400 million, or $1.05 per share in the second quarter ended June 30, up from $397 million, or 97 cents per share, a year earlier.

Adjusting for restructuring and other charges, CBS earned $1.12 a share, beating the analyst consensus of $1.11.

INVESTIGATION

Moonves remains CEO of CBS as two law firms conduct an investigation into claims by six women described in an article in the New Yorker magazine last Friday. They said Moonves sexually harassed them in incidents between 1985 and 2006.

Moonves was quoted in the New Yorker as saying that he "may have made some women uncomfortable by making advances", which he called mistakes that he regretted immensely, but that he understood "'no' means 'no'" and had never used his position to harm anyone's career.

The CBS board approved the hiring of the law firms on Wednesday and also set up a special board committee to help the probe. Moonves will have no role in the investigation, CBS said.