How can I get sky to remind me when I certain show will always be on, without me having to set a reminder?

To clarify, there are many shows on sky that are only on very rarely so I don’t want to look every week to see if they are on this week or next week, is there anyway I could get a email/txt or what ever reminder to tell me this show is on. Also I like science but I don’t have a particular show about science I like so how can I get a reminder for shows about a certain topic? (I don’t mind who gives me the reminder)