Yes, just watched it. Quite good.
Just watched the last of three episodes, and would agree that this was quite good, but not brilliant. The main problem, I think, is that there's just too much that happened in that two hundred year period to compress down to three one-hour episodes - the 1st Crusade alone could easily take up that amount of time - and so there was a lot that either didn't get covered in much detail, or was missed out all together (amazingly, the 2nd and 4th Crusades didn't even get mentioned). It was beautifully made, and took in some sumptuous locations, particularly some of the ruined castles on the Levantine coast, but I couldn't help but feel that if this had been made in, say, the 1970s, it wouldn't have looked half as good, wouldn't have had all the location filming in Israel, Egypt, Turkey, Syria, etc., and wouldn't have had such a telegenic presenter, but probably would have done it over about ten episodes, with more talking heads, and with commentary overlaid with maps and paintings, and would probably have been drier, more stuffy and less sophisticated in its delivery, but probably better, too.
But on the plus side, there was much of interest, and some of the locations really were stunning, and made me want to visit the places to see them for myself. I found the third episode, that focused on Louis IX's disastrous expedition to Egypt, and then the massive conflict between the Mamluks and the Mongols, the most interesting, because I knew the least about it beforehand. We were also shown some beautiful and fascinating artifacts over the course of the three episodes, and the writer / presenter made some good points, I felt, particularly in his summing up. I will probably read his book now on the strength of it, particularly if it's illustrated with some of the places, pictures and artifacts we saw in the TV programme.
Worth watching, for sure, but could have been better.