Brit Floyd last night. Pretty good 6 member (plus 3 backup singers) tribute band, talented musicians more or less true to the original tunes (of which they played 25) though they went their own way a bit more than once. And video/lights/lasers were much like what the originals did, or so I've read. Not a bad way to spend an evening and $40, especially if you love Floyd.
Will see Roger Waters in the Fall to compare.....