http://www.nickandmore.com/2017/09/01/nick-at-nite-acquires-the-goldbergs-reruns/Tiny Christmas will star Riele Downs (HD) and Lizzy Greene (NRDD).
The Goldberg's will air daily at 1am* from 18th Sept. - http://nickalive.blogspot.com/2017/09/nickelodeon-usa-welcomes-goldbergs-to.html
* Not a typo. ¯\_(ツ)_/¯
Yeah it will actually air 1:06AM and 1:39AM due to less than 100 episodes, and it has been off the clock. You were close at 1AM so far. And we don't know if Fresh Prince is permanently off the lineup yet... We have yet to figure out new schedule...
EDIT: Fresh Prince is not off the lineup, just got moved to 2AM hour slot, but then later on late Sept 2017 returned back to 10PM hour