[Deewhy]

I just noticed in my MySQL database a lot of shows are duplicated with different ID numbers. I guess this has something to do with my problem. Any idea why this would happen when all have been scrapped using the thetvdb?

What do you mean by ID? The unique identifier referring to tvdb or tmdb? Or just the mySQL row index?
If it is the former: Do the IDs match to the different information providers? So can you create a connection of all the IDs to e.g. the id of tvdb?

I’m not that good at all this, but I think I am sorted. I must have somehow scrapped under two different sources, I have basically deleted everything and started again on all off my pi’s and it seems now it’s all good. 
thank you to the reply’s these did show me the way.