`Show` is misleading

[MattWindsor91]

We have two struct types, Show and ShowMeta. Of these, ShowMeta actually represents a show (and other places eg. the website internally call this thing a show). Show seems to be a mix of things relating to timeslots and things relating to shows.

I was quite confused by this---is there anything better we can call Show so ShowMeta can be named Show? Why does Show (the existing one) exist in the first place---ideally it shouldn't be needed as timeslots should cover this information, is this a MyRadio problem?

[ChrisTheBaron]

I believe this was my bad, when I was writing these additional structs I didn't really understand what they actually represented 😝 I believe we should refactor to bring it inline with the api, so Show, Season, Timeslot, etc.