the most egregiously offensive episode has got to be the one with Rosa Parks. Hey kids, did you know the civil rights movement in America wasn't just the combined efforts of poor people organizing to overcome racism? There were also goofy white British people in a magic time machine who came to save everyone. In fact, the Doctor was right there on the bus with Parks.

how does something like that even get written? The writers could have done a show where the Doctor meets Rosa Parks, that could be fine. The Doctor hangs out with historical figures all the time, but the writers couldn't help themselves. They can't just have the Doctor be there, the Doctor has to help. But not help in an actual way like defeat real world threats like the cops or Klansmen, no there's scifi stuff. hey kids did you know the greatest threat to the civil rights movement was actually an evil time travel man from the future

Also that episode was filmed in South Africa which shouldn't matter but it makes me feel weird for some reason.