The Bayeux Tapestry [https://en.wikipedia.org/wiki/Bayeux_Tapestry] was lovely to see. The episode focuses on a truth we all know. Conquest is never as simple as the history books put it. It usually far more bloodier and far more complicated.
William is a conqueror not because the simplicity of hastings but because he destroyed the multiculturalism south of scotland or the picts back then , destroyed the allowance of the welsh or northumbrians/scandanavian cultures and pushed the normans in. At the end of the day the saxons wasn't all of england but just the south of england. The saxons on one side of the channel plus the normans on the other side were cousins. But the other regions of england were different, welsh or northumbrian. William defeated the saxons but needed to defeat the other cultures in the land commonly called england, and he did by fire and starvation. And thus made england two cultures, Norman + Saxon , with the saxon being a blend of welsh/saxon/northumbrian merged under a norman identity. The name of the child going from Tostig [ pronounced Tostee] to Williams says it all.
On a side note, it is very interesting hearing how the welsh/saxon/northumbrian women went to convent, tried to evade being married to normans whose entire purpose in being with non norman women was making halfbreeds, ala the spanish conquistadors in central america/caribbean/south america/mexico. It explains a key point, that the women of the various cultures the normans conquered worked hard to remain with the conquered peoples. Willing to marry to any but a norman, thus the multicultural set of women made the saxons, and over time the saxons + normans became the english.