Having streaming problems on your Apple TV? As TUAW reports, there’s a hidden diagnostic tool in Netflix. Search for a video called “Example Short 23.976,” and play it. The test video displays the current bitrate, resolution, and aspect ratio. If you see a low bitrate, restarting your wireless gateway and cable/DSL modem could help, although the problem may simply be too much usage in your neighborhood. follow link
Go Back and Forth Fast in Preview
If you're reading a PDF in Apple's Preview software, and you follow a bookmark or an internal link to move around within the PDF, you can quickly return to where you were by pressing the keyboard shortcut Command-[ (that's Command-Left Bracket). Or, you can choose Go > Back.
The command works iteratively, so you can go back to just the previously viewed page or if you issue the command again, to the page before that, and so on. There's also an equivalent Go > Forward (Command-]).
- ExtraBITS for 6 January 2014 (06 Jan 14)
Diagnose Netflix Problems on the Apple TV