Fans got to know and love Ted Danson and Kelsey Grammer while watching "Cheers," but behind the scenes, they had a feud that ...

NBCU Photo Bank/NBCUniversal via Getty Images Kelsey Grammer as Dr. Frasier Crane and Ted Danson as Sam Malone on 'Cheers' ...

Kelsey Grammer is clarifying his former falling-out with his "Cheers" co-star Ted Danson. Last October, Grammer and Ted Danson reflected on their distance over the past 30 years and made amends.

Over 30 years after "Cheers" aired its final episode ... "It was when I was drinking a lot. Ted had just come up and said, 'You know, I'm kind of mad at you that sometimes you don't show up ...

In October, Kelsey Grammer and Ted Danson reflected ... a little bit with you during the ‘Cheers’ years. I have a memory of getting angry at you once,” Danson told Grammer on his podcast.

Former Cheers costars Kelsey Grammer and Ted Danson have been rekindling a friendship after 30 years of fighting — but Grammer has just now finally revealed what started the feud in the first place.

She has been working at PEOPLE since 2008. Jeff Kravitz/FilmMagic Sounds like Kelsey Grammer and Ted Danson have much to Cheers about. In October, Danson hosted Grammer on his Where Everybody ...

But sometimes an argument can lead to a 30-year unspoken issue, and Kelsey Grammer is now revealing the reason why he and Cheers costar Ted Danson didn't talk for three decades. "It got a little ...