I’ve searched for “Better Call Saul” and it’s saying that 6th episode of that series are released at 31 Dec 2020. But season six just started filming in February 2020.
I found it harder to start typing 2021 after the new year because 2020 was such an easy year to bang out on the number pad. My fingers and eyes got used to the symmetry of it.
I even made the mistake when typing the correction for OP in this comment.