In 2016, HBO struck a deal with Sesame Street Workshop so that new episodes of the series would come to HBO first before airing on PBS. It's that portion of the deal that's coming to an end.

The segment Greene cited wasn’t aired; a local station mistakenly uploaded it to PBS’ site, where it stayed for two months before being removed ...

Discovery’s time on Sesame ... Street will be the final to debut on Max (though it will continue to license episodes for its library through 2027). The series originally moved to HBO in 2016 ...