. . .
PBS, despite it's name and some of its funding, is not controlled by the US government. PBS also has a long, LONG history of bias against Israel in reporting on the conflicts in the region while whitewashing Palestinian actions. Bear in mind, when it comes to Israel this is one of the few areas where the "Deep State" is actually pretty severely divided, with many politicians and military/intel types (IE actual elected politicians, the Pentagon, and the Intel agencies) favoring Israel while the Academic / diplomacy types (State department, NGOs, and everyone else) favor Palestine. PBS, and most of the US news media, fall into the Academic type circles and thus tend to favor Palestine in their coverage and demonize Israel.