Cosby, you may remember, has been accused of sexual assault by dozens of women. Matthews then laughs, delighted with the line, for an extended moment, as the staffers around him react with disbelief, clearly uncomfortable.
New York Magazine contacted Matthews after acquiring the clip, and he apologized, reportedly telling them the joke was "a bad comment [he] made in poor taste during the height of the Bill Cosby headlines. Precious waters?" he innocently jokes, before diving in. "I realize that's no excuse".
Matthews apologized for his remarks in a statement to the Cut Friday.
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Just six have been conceded over a 10-game period but the majority of them have come during the latter stages of either half. The boss also said he has no intention of resting Fernandinho and sees no reason why he should.
Reps for Clinton didn't immediately respond to a request for comment from TheWrap.
Jennifer Palmieri, the Clinton campaign's communication director and a longtime Democratic operative, said watching the Matthews tape "makes me feel ill". "Hardball" was hosted on CNBC at the time.
He apologized in 2008 after he said that Clinton became a US senator and a leading presidential candidate only because "her husband messed around".
In 1999, a female assistant producer received a monetary payment after accusing Matthews of "inappropriate comments and jokes about her in front of others".
During the interview that followed, Matthews asked Clinton about her husband's infidelity and asked her whether it was "culturally" important for women to be allowed into military combat roles. "My God is that good".