I have a trick here - I don't have a Sky box. This means that you generally have to know what you're looking for to watch it rather than any old shit just coming on.
So far I've got Masha and the Bear on repeat, Mr Tumble is becoming a fast favourite displacing the previous hot shit of Peppa Pig along with classic episodes of Noddy and In the Night Garden for all of the pre-bedtime needs.
In honesty there are two current types of content that we agree on - he will sit watching City chant videos for ages and absolutely loves the Guardiola/Glad All Over song, and he's also picked up a liking of Formula 1, Top Gear or any other show that feature revving/noisy engines. We find a happy middle ground so it's not just Masha all day every day.
Not a big fan of Game of Thrones though the little shit.