Very interesting thread! My wife and I both noticed how poor the Netflix picture seemed on our Apple TV for the past month or so. Definitely something new. Here is our setup:
• Apple TV 2 running software version 6.0. Connected via Ethernet to Apple Airport Extreme router- no wifi involved anywhere
• Airport Extreme connected to web over Comcast 25 Mbps cable. Consistent Speedtest results of 25 Mbps down and 5 Mbps up.
When viewing the Netflix test image multiple times on the ATV, the more common resolution I am seeing is 1050 kbps, but there are frequent and lengthy periods of 750 kbps, 375 kbps (mud), and yikes even 235 kbps (unwatchable).
I shutdown and rebooted all the devices including modem, router, ATV, etc. No help.
When running the Netflix app on my iPad 2, I consistently see 1,750 kbps. I also tried viewing on a Sony BD player and an older Tivo HD, but they don't seem to be able to display the realtime kbps.
Anyhow, I'm hopeful that this has gotten the attention of Apple and Netflix and that this will be fixed soon.
Dave