Essentially my question is how should it be displayed if a show that was initially airing on one day changed slots and now airs on a different day of the week. 

For example this show started airing on a Saturday but now it has changed slots and airs on a Monday. So the page shows Saturday but how should it be displayed to reflect the different air day?

Should it stick to the original day (Saturday), be changed to the new day (Monday), or display both (Saturday, Monday)? 

[This is just one example and other variety shows have a similar problem of switching air days.]

Sorry if there's already a thread about this but I couldn't find one.

I would just stick to whatever the latest. Hopefully, we will be able to change how it works.