iStumbler is an easy way to scan for information about the Wi-Fi environment around you, as well as see available Bluetooth devices, and what Bonjour services are available on the local network. The latest version, release 99, works only with Mac OS X 10.6.2 or later, adds support for the 5 GHz band used by 802.11a and 802.11n, and takes advantage of the coordinate-based location feature in Snow Leopard to allow GPS-like tracking as the application scans. (Free, donation requested, 1.1 MB)
Enable Apple TV Subtitles
While a video is playing, hold down the Select (center) button on your Apple TV remote to bring up the Options menu, then choose the Subtitles view. If there are embedded or external subtitles associated with the video they will appear in the list. If you are using Silver Screen to AirPlay video to the Apple TV, it will dynamically extract the subtitles and send them to the Apple TV.
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