People today use the Netflix service on their computers, but Netflix (NFLX) has cut a series of deals with hardware partners to make the service available on TV sets through an array of devices.

Most of these devices were designed to do other things: a videogame console, high-definition Blu-ray disc players, a TiVo (TIVO) digital video recorder. So to see how well the service works on these devices, I’ve spent the past couple of weeks comparing the Netflix experience on Microsoft’s (MSFT) Xbox 360 game console, on LG Electronics’ BD300 Blu-ray disc player and on a set-top box from Roku called the Netflix Player. The last, as the name implies, is designed mainly for Netflix service.

The devices suffer from a relatively skimpy selection of videos on the Netflix Internet service. Netflix has more than 100,000 titles for rent on disc, but about 12,000 titles for viewing through its Internet service at the moment, and there’s often a months-long delay after a movie’s release before it shows up online. Television shows generally turn up more quickly, with a handful, like NBC’s “Heroes,” watchable the day after they air.

Still, I find the Netflix service very appealing, especially for catching up on episodes of TV series, such as “30 Rock,” that I missed when they aired. Unlike the iTunes Store and other sites that charge users $1.99 per TV episode and $3.99 to rent a movie online, the Netflix Internet service is free to subscribers to its DVD service on one of the company’s “unlimited” rental plans, which start at $8.99 a month.

Depending on how fast your Internet connection is, Netflix videos begin playing almost instantly, though you can’t keep permanent copies.

Connecting the devices to Netflix through my wired home network was easy in all three cases. I used a wireless home network — more common in homes than the wired variety — with the Roku device, the only one of three products that comes with built-in Wi-Fi (it worked well in this mode). People who want to use the Xbox 360 with a wireless network will have to spend $70 or so on an external Wi-Fi adapter. LG recommends people use only a wired home network to connect to Netflix from its player, including adapter kits that cost about $100 for transmitting data over home power lines.

All the devices require you to create a list of movies you want to watch from a computer, just like Netflix subscribers set up “queues” of DVDs to be delivered by mail. The Xbox 360 offered by far the most elegant-looking interface for browsing through videos in my Netflix queue, letting me glide through a long row of cover art representing the movies and TV shows I selected on my PC.

In contrast, the Netflix menu on the LG Blu-ray player and Roku device were more static, making it more awkward to navigate the expanse of titles. Netflix became available on the Xbox 360 in November as part of a more sweeping software upgrade, delivered over the Internet, that remade the graphical look of the system.

The quality of most of the videos on Netflix is, to my eyes, about DVD quality, though Netflix is adding some titles in high-definition to its Internet library. HD titles were available for viewing only through the Xbox 360 when I was testing the service. Roku and LG say they will make software updates available online this month that add HD support to their devices.

The Xbox 360 also has some annoying quirks when using it as a movie player — including a noisy fan I found distracting. The game controller that comes with the Xbox 360 is clunky for playing movies, so users will need to invest in an inexpensive additional remote-control design for media. The Roku and LG players, in contrast, were totally silent and had acceptable remote controls for watching Netflix videos.

I experienced the most serious glitches with the LG Blu-ray player, which occasionally dropped the video signal to my television set as I was watching a movie. LG says the loss of video signal could have been due to the connection I used to hook the player to my TV, though I’ve never had a problem with other devices using the same connection. The LG Blu-ray player also took the longest of all the devices to install software upgrades from the Internet.

While there are some differences in the Netflix experience on the Roku device, Xbox 360 and LG Blu-ray player, none of them is so great that they should trump other considerations — like a desire to play videogames or watch HD Blu-ray movies — in deciding which system is the best fit.

The LG Blu-ray player is available online for about $300. The cheapest Xbox 360 model is $199. (To get Netflix through the Xbox 360, users must be “gold” members to the $49.99-a-year Xbox Live game service.) But if what you’re after is primarily Netflix movies, and you’ve got room near your TV for another box, the $99.99 Roku product is the best value.

Walt Mossberg is on vacation.

Write to Nick Wingfield at nick.wingfield@wsj.com

The Kodak Theatre HD Player’s motion-sensing pointer remote works much like a mouse on a TV screen.

This week I tested the Kodak Theatre HD Player, the photo-centric company’s attempt to snag valuable real estate in the living room. This small, black box pulls photos and videos from computers around the house and displays them on an HDTV. It also enables the sending and receiving of photos via Kodak Gallery, and connects to Web-based photos stored on Flickr, Facebook, Picasa, .Mac and others. Podcasts, Internet Radio and updates from news feeds, weather forecasts and stock quotes are also accessible using the HD Player. And it has a terrifically simple motion-sensing remote that works like using a mouse on a TV screen.

But the HD Player isn’t all smiles. Its $299 price doesn’t include any built-in storage for keeping content directly on the device. It currently has no way of accessing HD movies or television shows, nor will it work with Macs. In comparison, Apple’s (AAPL) $229 Apple TV has 40 gigabytes of storage, can access HD television shows and movies via the iTunes Store, and works with Macs and Windows PCs. This is important because as budgets tighten in the current economy, gadgets have to prove their value and versatility more than ever.

After using the Kodak Theatre HD Player with Windows XP and Vista machines over the past week, I can conclude that this device’s interface shines in its simplicity and is a lot of fun to use. Kodak teamed with Hillcrest Labs to make the player’s motion-sensitive remote and corresponding software, which includes satisfying extra features like images that automatically magnify when the remote control’s cursor points at them and icons that make chirping sounds when selected. The remote itself is shaped to rest comfortably in a hand and has three simple buttons and a scroll wheel.

Quick-access memory-card slots for six types of memory cards appear on the box’s front, and two USB ports can connect to digital cameras or USB storage devices.

Currently, the player’s software works directly with Flickr, RadioTime (8,750 radio stations) and FrameChannel, which grants access to various “channels” like Facebook, .Mac, Picasa, People.com news and National Geographic. Kodak says it will incorporate YouTube access in January; I got a sneak peek at the interface for this and it looks well-organized.

Yet the HD Player’s smart combination of software and remote left me wishing it did a bit more. Photo sharing is enabled only via Kodak Gallery, so you can’t use another Web-based account to share photos directly from your TV. Likewise, a blue light on the box slowly blinks only when new Picture Mail (a message containing shared photos) is received on a Kodak Gallery account, not when new photos are added on other sources such as Flickr Photostreams or Facebook pages.

The Home screen of the HD Player shows four categories: Pictures & Videos, Kodak Gallery, Music and Entertainment. Subcategories are where you might guess they would be, for example podcasts are listed under Entertainment. And a tiny Home icon appears in the top right corner of every screen so you can always get Home with one click. The Pictures & Videos category holds photos and videos from a currently selected Windows PC.

An unlimited number of Windows PCs can wirelessly pair with the player as long as they have special Kodak software installed on them. But only one PC’s content can be accessed at a time. I toggled between two paired computers without a problem, but would’ve preferred accessing music and photos from both sources simultaneously.

The HD Player’s motion-sensing pointer remote works much like a Wii remote control. Wherever you move it, a tiny leaf-shaped cursor appears on-screen. A Hide button on the remote will hide the cursor while you watch slideshows. The remote’s Back button is helpful; when pressed, it backs you out of one screen using visual effects that make the screen shrink into the TV as if you were moving backward.

A play button appears on the first photo in a folder so users can select this icon to quickly start slideshows. Whenever the HD Player receives new Kodak Gallery Picture Mail, or a slideshow is created on a connected PC, yellow alert circles appear on the screen to notify users and a number in the middle of these yellow circles indicates how many new items are available for viewing.

Some content on my PCs took a little while to be recognized by the HD Player, including podcasts that I subscribe to on iTunes. When they did show up, both audio and video podcasts played without issue and on-screen playback buttons made them easy to control.

The HD Player uses your photos to create automatically generated slideshows, called Picture Chronicles, once a week. These Picture Chronicles use up to 50 photos from the same time of year in all of your folders, for instance grouping all Thanksgiving photos together from the past five years.

Kodak has plans to make its player Mac-compatible in the future and also hopes to add other partnerships with new types of content following its YouTube announcement early next year.

The Kodak Theatre HD Player does its job well, bringing photos and videos that might otherwise live only on your PC to your big screen HDTV. For the holidays, this device could be a real plus. But Kodak has some work to do to make this a more useful Web-connected tool.

Edited by Walter S. Mossberg

• Email us at mossbergsolution@wsj.com. Find this and other columns and videos online free at the All Things Digital Web site: http://walt.allthingsd.com

Now, Disney (DIS) and CBS (CBS) already offer those same shows for viewing on the same day-after-original air date schedule on their own Web sites (though they aren’t presented commercial-free as they will be on Netflix). But that doesn’t seem to matter to Netflix (NFLX), which is clearly positioning itself as a one-stop shop for online delivery of movies and television shows.

And doing quite well at it, I might add. Wedbush Morgan Securities analyst Michael Pachter estimates that between 10 and 20 percent of Netflix’s 8.4 million subscribers use the company’s streaming service regularly.