People offer me loads of stuff, and some of it I like, but I just can't do it because I can't write it all. So I might get in the position where I have some sort of company and just write maybe the first episode, but these are love projects, in a way.
People love cliches. If you can give people cliches, that's very good TV, then.
You have to create characters - certainly in series TV - who people engage with. They don't have to be nice; you don't have to agree with them. But they do have to be compulsively watchable and believable and human, and you want to know what happens to them.
With 'Vikings,' I had the task of making these people interesting and, to a point, sympathetic.
The Vikings certainly didn't write anything about themselves; it was not a literate, but rather a pagan, culture. So what we get was written later by Christian monks. But there were occasional reportings and recordings of people who had traded usually with the Vikings.