While streaming iPlayer on my Sky connection I noticed that it is not coming from the usual .. Akamai or Highwinds CDN's. It is actually streaming from a Sky IP address: 126.96.36.199 / host93-rangeB-level3-global.cdn.hobir.isp.sky.com. So I guess that Sky are running their own CDN now? Which would be good as Akamai performance is poor in the evenings, seen it drop to a few hundred kbps! Thing is even from Sky's own servers but it is not buffer free!
Anyone else having streaming problems on Sky?