OK, so although the streams do generally work, I've got a couple of problems still.
1. After some amount of time the stream will freeze. Once frozen trying to rerun the stream gives a "The content is corrupted" error on the PS3. On the PC, there are continuing processes for rtmpdump.exe and ffmpeg.exe using the CPU for each stream that freezes.
2. Some of the streams have a funny aspect ratio, which is squished horizontally and with the top 5% of the image cut off.
Some streams, but not all, give a "This content cannot be played" error on the PS3.
Logs attached, sorry to keep bugging you!
Edit: actually, the twitch one seems to be the same problem as Wishthink just above.
You do not have the required permissions to view the files attached to this post.