Does this mean the end of PBS?
It will drastically scale back the funding and coverage of public broadcasters, but they should (hopefully) survive.
That said, they effectively cease being public at this point. And ironically enough, they have no reason anymore to pander to wider audiences so if anything they will become more "left leaning" over time.
Update: Just confirmed, no. Federal funds only makes up 15% of PBS's funding. [1]
1: https://foundation.pbs.org/ways-to-give/gifts-to-the-pbs-end...
So if that's true, I guess not. If it was actually a mouthpiece, I guess so