Larry King Warns David Letterman about the Dangers of Retirement

How will David Letterman deal with retirement?

That's the big question as the 68-year-old TV legend brings down the curtain on his four-decade career.

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"Will he miss the show? Sure. You can't do something that long and not miss it," said former talk show host Larry King, who left his CNN show in 2010. He advised Letterman to stay busy.

King said, “I couldn't stand retirement. I tried it and I thought, ‘I could leave.’ I was 10 years older than Dave at the time, and I couldn't. I'm lucky enough to get back in.”

Dick Cavett's late-night talk show ran on ABC for six years back in the sixties and seventies.

He told INSIDE EDITION, "I think there will be a certain amount of nostalgia for the old days and even the more recent newer days. There will be times when you think, 'Oh damn, I wish I were on tonight, and I could just do this subject, or this scandal."

Letterman is apparently uneasy about retiring, as Oprah Winfrey found out when she appeared on his show last week.

“I'm anticipating difficulties,” Letterman told her.

“I actually think you're going to have a difficult time. Call me,” said Winfrey.

Meanwhile, on his last show, Jay Leno said, "This has been the greatest 22 years of my life." More than a year after leaving The Tonight Show, 65-year-old Leno is staying busy. He still does 200 standup shows a year.

Johnny Carson, in contrast, all but disappeared from public view after he handed over the reins of “The Tonight Show” in 1992.

In Letterman's recent interview with CBS’s Jane Pauley, he hinted he may choose the same path as his hero Johnny Carson.

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“I doubt that anybody will ever see me again,” he told her.

Letterman, who was born in 1947, is one of 16 million baby boomers who have reached retirement age. Each day, another 10,000 boomers hit 65.

Meg Grant is entertainment director for AARP magazine. "He could change the world. He could start a charity." she has some tips for retirees. "Try a new career, even if it's just working part-time at the library, or something like that."

Whatever the future holds for Letterman, we'll let Larry King have the last word, "Go get 'em, David."

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