It is television, not just the people who make it, which has a Left-wing bias

But it’s also the case that television is itself Left-wing. The very medium makes it easier to present liberal messages, which tend to revolve around more obvious and simple cases of right and wrong, and which tend to trigger positive emotional responses in the audience. So, for example, it’s easier to present, whether it’s a kid’s programme with a talking bird or a 30-minute sit-com, the idea that conflict can be resolved peacefully. It’s far harder to present the argument that sometimes it cannot, that not all grievances are legitimate and that just because people hate you, it doesn’t mean you deserved it.