NEW YORK Apple is a pioneer in many fields, but in the race to connect our TV sets to the Internet, its been lagging badly.

Three years ago, the company put out a small box called the Apple TV that brought iTunes movies to the TV set, but it was too cumbersome and expensive to be a success.

Now, theres a new, revamped and cheaper Apple TV, costing $99 in the US. It mainly represents Apple Inc. catching up to what competitors have been doing in the intervening years. However, with Apple being Apple, it also has some nifty features that set it apart.

So what is the Apple TV? Every time I write about it, I feel compelled to point out that despite the name, its not a TV set. Its a black box that comes with a small remote. You connect it to your TV set either directly or through a receiver. It shows a computer-like interface on the TV screen, which you navigate using the remotes buttons.

To connect the Apple TV to the Internet, you enter the password for your Wi-Fi hotspot, or connect the box to your router with an Ethernet cable. Once online, you can start renting TV shows and movies from Apple. You can also watch Internet movies from Netflix, if you have an account.

In set-up and operation, the new Apple TV is simpler than the old, which was more like a small computer, with a hard drive of its own. It was designed to download shows from iTunes or your computer, then play them back.

By contrast, the new one has no hard drive, which makes it smaller and cheaper, and it is designed to play video as it streams from the Internet rather than storing them. That means you dont have to worry about the hard drive filling up, either.

So far, so good. But my main problem with the Apple TV business model is still very much a problem. When you rent a movie usually for $4.99 if its in high definition and hit the Play button, you have 24 hours to watch it.

If you cant finish it in one evening, youre going to have to cough up another $4.99 to finish it. Watching a movie in one sitting is a distant memory from my pre-parenthood days, so this model simply doesnt work for me, and Im sure Im not alone.

Theres nothing about the Apple TV itself that dictates a 24-hour movie lifespan. Its all Hollywoods fault. The only progress on this issue in the last three years is that we now have 48 hours to watch rented TV shows.

So we have twice as long to watch shows that are a quarter of the length of full movies. Thank you, thank you, dear studios.

The Apple TV, does, however, offer a cheaper way to watch movies. If you pay at least $9 per month for a Netflix subscription, you can watch as much as you want of Netflix Inc.s streaming movies through the Apple TV. The image quality isnt quite as good as the rentals, the movies arent as fresh and theres no surround sound, but this is good value for money.

Streaming Netflix movies on the TV is old hat, though. Two years ago, a small company called Roku brought out a small box very reminiscent of todays Apple TV. It cost just $100 and did a good job. Since then, Netflix service has been extended to game consoles and DVD players. Some TV sets can even play Netflix movies by themselves, with no accessories of any kind.

I took a look at the Roku HD, an updated model of the original box. It costs $70 and plays Netflix just as well as the Apple TV, though its a bit bigger and the interface is not as polished. For $100, you can get version that can connect to older TV sets that dont take digital inputs; Apple TV cant do that.

The Roku boxes dont play Apple or iTunes content, but can play rented and purchased movies and TV shows from Amazon.com Inc., under similar terms. It also offers baseball from MLB.tv and streams from less-known providers. In the next few months, its also adding Hulu Plus, which provides ABC, Fox and NBC shows for $10 per month.

So why get an Apple TV instead? Well, it does play well with other Apple products. If you have a computer running iTunes at home, the Apple TV can reach into it to play movies and music from your hard drive, including purchases from the iTunes Store that you wouldnt be able to buy and store with just the Apple TV. Instead of the tiny and eminently losable remote, you can control the Apple TV from the touch screen of an iPhone, iPod touch or iPad.

Apple promises an even cooler feature in November, called AirPlay. A software update will let Apples handheld gadgets stream photos, audio and video to the TV through the Apple TV, using Wi-Fi. That will be an easy way to get movies and photos youve shot yourself on to the big screen.

Like the Roku boxes, the Apple TV has the potential to save a lot of money for people who like watching movies and a few TV shows, but dont care much about news or sports and can put up with the 24-hour limit on rentals.

If youre in that category, you can get rid of cable or satellite service in favour of a TV antenna and a Netflix subscription. Forget 100 channels and nothing on youll have 15 channels and something always on, online.

Its a fine stop-gap solution for the problem of bridging the distance between the TV and the Internet. In the longer term, stand-alone boxes like this will go away, and TVs will come with Internet connections as standard. It will be interesting to see if Apple has a place in that future.

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