Departing Early Show host Bryant Gumbel says he and his former Today co-host Katie Couric weren't exactly pals.

"We were two different kinds of people," Gumbel tells Barbara Walters on tonight's 20/20

"What sometimes she thought was funny I would think was not; what I thought was funny, she thought was juvenile," Gumbel says. 

"We got along for television purposes and off the air we got along. But we weren't particularly close." 

Gumbel also takes a thinly veiled swipe at Couric — who took some flak last February for complaining about her "brutal" hours while covering the Winter Olympics, right after inking a $65-million contract. 

"I kind of promised myself that if you're going to get up and do it, don't complain about the hours," Gumbel says. 

"There are an awful lot of people in this world who get up very early for an awful lot less [money] . . . and the last thing they need is to hear Bryant Gumbel griping about his hours." 

Today was Gumbel's last day co-anchoring the third-place Early Show after 21/2 years. 

Gumbel chose to give his exit interview to ABC's Walters — rather than to CBS. 

"You'll never see me working five days a week again," he tells her. "I'm still going to continue to do television. I'm just not going to do morning television."

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