Already mentioned on this list for the mind-numbing slaving to fan continuity, Season 22 also tops this list as the time Doctor Who crossed the line in a big way. Once again, Robert Holmes's fingerprints are all over this though he can't be blamed this time. Script editor Eric Saward had really taken to the veteran writer and considered The Caves of Androzani his masterpiece, so much so that he modelled Colin Baker's inaugural season on its darker, more amoral themes. However, Caves worked because it was an exception, not the rule, and also because Peter Davison's Doctor remained the moral constant. Robbed of that and Holmes's superior writing and Season 22 is a nasty, brutish affair, full of violence and pain and a pessimism that just isn't Who. The violence is objectionable, especially the crushing of Lytton's hands and the way the new Doctor seems to enjoy shooting things. Vengeance on Varos may be a clever commentary on screen violence but it has the Doctor pushing people into acid baths and making quips. Images of bloodied foes and people eating the heads off of rats have no place in a sci-fi show for children. The audience agreed, as did Michael Grade. This crossing of the line was the beginning of the end of classic Who, leading to its temporary cancellation and its eventual permanent one.What did you think of this list? Are there any other examples of Doctor Who crossing the line that should've been included? Let us know in the comments section below...