These 3 films are one of the most significant events in the history of cinema. Having said that, I don't feel they deal with themes which are beyond the understanding of mere mortals like me and you. They are like some of Beethoven's greatest music: it's simple but unfathomably great.
My personal favourite is "White." The male lead embodies the pathos of his situation perfectly, and, while he goes on to overcome his personal difficulties in dramatic fashion, and to take revenge on what he sees as his wife's cruelty, he comes to realise that he has gained nothing of lasting value. The closing scene is one of the most genuinely moving moments I have ever seen.
The glorious "Blue" quickly dispenses with the preliminaries; the central character's composer husband is killed in a car accident, and his wife eventually finds peace and redemption through a chance hearing of a street musician, apparently playing one of her late husband's themes, even though the music had never been published. She goes on to work on her husband's unfinished compositions, and the film reminds us of the universality of human suffering and the potential for human unity.
Like I said, these aren't new or even original themes, but this trilogy treats them with a cinematic beauty and a profound insight into the workings of the mind which has never been equalled.
If you want to spend some time with your television, you couldn't ask for a more worthwhile way of doing it.