Sling Media Slingbox Pro-HD

The new Slingbox has inputs for component and composite video, coaxial, and both analog and digital audio. It also has a built-in ATSC digital TV tuner. The Pro-HD's infrared cable splits four ways, so you can place one IR transmitter on each device you hook up and wish to control.

I first tested how well the Slingbox Pro-HD worked on my internal home network, with both ethernet and draft-802.11n Wi-Fi on the uncrowded 5-GHz band. I used the laptops to watch both live and recorded high-def programs from my Comcast box. On the HP notebook, playback was pretty darn good: The images looked terrific and significantly sharper than standard-def footage.

On the ThinkPad, my experience was less satisfactory. The A/V stream would start out well, but both the audio and video feeds began stuttering after a few minutes. Sling Media's tech support eventually figured out a way to smooth out the video by having me shut down a syncing app that was running in the background, but I never figured out how to get the audio to stop skipping.

Because my DSL service tops out at about 750 kbps upstream--not enough to support remote delivery of HD content--I reinstalled the Slingbox at the home of a friend who has cable broadband (which does meet the HD bandwidth requirement). Again, I was unable to configure the router automatically for remote access, but Sling Media's tech support guided me to an external site that offered configuration instructions for that particular router.

Back at the office on PC World's internal wired network, I watched the high-def stream on the HP notebook and on the older Dell desktop. Playback wasn't perfect--you could see dropped frames throughout, and a few skips of a few seconds each--but most of the time it was acceptable.

The player software incorporates some other improvements over previous versions, including a built-in program guide. Unfortunately, the guide did not list all of the available channels on my cable service--for example, the Sci-Fi Channel was completely missing. I was able to exercise complete control over my HD box at home with a virtual replica of its remote in the player software.

I would consider getting a Slingbox Pro-HD if I were confident of having access to reliable, high-bandwidth broadband in places where I expected to watch remotely--and if I didn't insist on flawless performance. Otherwise, the Pro-HD's predecessors provide similar functionality for standard-definition streams.