In the first episode two people have an affair, there is a non explicit sex scene in the first few minutes, and later in the episode it shows a woman's nipple during an affair scene

This is NOT what you would see on broadcast TV (at least not in the US in 2020). There is partial nudity (women's breasts) and it's quite intense, though not explicit.

Bare breasts. Bare buttocks from behind. Sex scenes with moaning and heavy breathing.

Around 1 maybe 2 lovemaking scenes every few episodes or so, including partial nudity.

Some stabbings and normally non-graphic assassinations.

Some bloody swordplay, stabbings, and executions.

Very little, if any profanity is present.

Season 2 - a scene of childbirth.