Where to watch internationally?

I watched the first 3 seasons of the show on dvd that my uncle gave me, I was excited to watch the rest however I’m unable to find any king of the hill content on any streaming service here in the uk. I then figured I’d buy the DVDs but they’re ridiculously expensive costing over £10 a disk. If anyone knows where to watch the rest of the series that will be massively appreciated 👍