The best way to watch Netflix, Amazon Prime Video and other video services online is to use a phone, according to a new study from researchers at Columbia University and the University of Pennsylvania.

“Theoretically, you could connect to the Internet from your home computer,” said the study’s lead author, Daniel Clements, an assistant professor of computer science.

“But that would be a very long, complicated, and expensive process.”

The new research, which is published in the journal Computers in Human Behavior, found that for most people, that wouldn’t be a viable solution.

Instead, the researchers suggest a way to use your smartphone or tablet to watch online video from a TV, projector or computer.

A phone or other smartphone or laptop that has a large screen can do the trick.

That could be a significant improvement over the alternatives: A large screen that only provides a narrow view is usually too small to enjoy most videos.

But a tablet, or smartphone that doesn’t need to have a large display at all, can easily stream a lot of content.

For the study, Clements and his colleagues compared video streams from Netflix, Google Play Movies, Hulu, YouTube, and other services to the best quality streaming videos on the Web.

They also compared the videos to other online video services, including Amazon Prime, YouTube Prime Video, and YouTube Music.

The researchers also looked at whether a person’s home phone or laptop had an Internet connection that would allow for streaming videos to their phone.

They found that most smartphones and laptops, but not televisions, worked just fine, though they weren’t perfect.

A smaller screen also could help, and some devices with a larger screen, such as the iPad, were able to stream videos on their screens.

But only about one-third of people have an Internet-connected device with a screen that’s large enough to comfortably stream online videos, according the study.

For most people watching online video, that phone or TV is the best way.

That doesn’t mean it’s the only way to stream online video.

There are other options, too.

Some people can watch videos on a small screen while surfing the Web or using apps that stream video at 60 frames per second, said Clements.

But the researchers found that many people don’t have enough room for a big screen.

“People need to be able to watch videos at 60 fps,” said Cements co-author David DeLong, a professor of electrical engineering and computer science at Penn.

“If you can’t, then you’re wasting bandwidth.”

This is one of the advantages of a phone that can do streaming.

Clements said that while smartphones are great for streaming video, it’s hard to get a phone to do all the streaming.

For a phone with a large-screen display, the phone could be connected to a large video projector or other big screen, but that would require the phone to have Wi-Fi.

The phone could also be connected directly to the internet via a Wi-fi router.

There’s a mobile phone or a tablet that can work this way, but most people don.

Some devices with large screens can do it too, but they need to connect them to Wi-FI and a network.

It’s not possible for a phone in your pocket or bag to do it, Cements said.

Cements and his co-authors hope the research will help make it easier to find video services that work well for everyone, whether they have a phone (or laptop) or a home computer.

Cement, who is also a postdoctoral researcher at the Penn School of Engineering, said he and his research colleagues are exploring ways to build a phone app that would let users watch video from any website they want, without having to pay for an app or a connection.

The study was funded by the U.S. Department of Energy.

A version of this story appears in the April 14 issue of Scientific American.