Robotics

Maria Diaz/ZDNETFew things ruin the joy of watching a good show more than suddenly seeing that rotating asterisk symbol or swirly icon that tells you your TV is buffering. Or maybe it’s stuttering, or altogether freezing. If this is happening on your Roku TV, don’t give up on it just yet.Also: How to disable ACR on your TV (and why doing so makes such a big difference)Like phones and computers, Rokus have caches that accumulate temporary data, which inevitably slows them down over time. There are simple ways to clear up this hidden clutter and get your Roku TV behaving like its normal, healthy self.Here are a few methods to clear your Roku’s cache, improve its speed, and make shows play smoothly again.1. Start by unplugging it More

Nina Raemont/ZDNETWithin less than 24 hours of wearing Samsung’s newest Galaxy Watch 8 More

Artur Debat / Getty Images T-Mobile has again earned top marks as the fastest mobile carrier in the land. In a new report released Wednesday, Speedtest provider Ookla highlighted the Uncarrier for providing the top mobile network in the US during the first half of the year. Also: The fastest Wi-Fi 7 internet providers in […] More

Kerry Wan/ZDNETUpdate: This story was first published on July 8 and was updated on July 23 to reflect the new sales information.Has Samsung finally done it? I’ve been asking myself that question this whole day, as I’ve been going about life with the Galaxy Z Fold 7 More

Adam Breeden/ZDNETDid you know that whenever you turn on your smart TV, you invite an unseen guest to watch it with you? These days, most popular TV models utilize automatic content recognition (ACR), a form of ad surveillance technology that gathers information about everything you watch and transmits it to a centralized database. Manufacturers then use your data to identify your viewing preferences, enabling them to deliver highly targeted ads.Also: Your TV’s USB port is seriously underutilized: 5 features you’re not taking advantage ofWhat’s the incentive behind this invasive technology? According to market research firm eMarketer, in 2022, advertisers spent an estimated $18.6 billion on smart TV ads, and those numbers are only going up.To understand how ACR works, imagine a constant, real-time Shazam-like service running in the background while your TV is on. It identifies content displayed on your screen, including programs from cable TV boxes, streaming services, or gaming consoles. ACR does this by capturing continuous screenshots and cross-referencing them with a vast database of media content and advertisements. More

Kerry Wan/ZDNETThe Samsung Z Flip 7 More

Jason Howell/ZDNETSamsung’s new Galaxy Z Fold 7 More

Kerry Wan/ZDNETRecently, I wrote about the various uses of the USB ports that come standard on the back or side of any smart TV. In this article, I’m focusing on one particular important use: installing firmware updates using a USB device.Also: How to disable ACR on your TV (and why doing so makes such a big difference)Updates are essential because they ensure your TV has the latest software, features, and security patches. Most smart TVs are designed to automatically check for and install updates over Wi-Fi — as long as they’re connected to the internet and the automatic update feature is enabled. To confirm this, you can usually find a “Check for Updates” option in the TV’s settings menu.But if your TV has an unstable Wi-Fi connection — or you simply prefer a manual approach — the following is a walkthrough of how to use a USB drive to do the job. 1. Identify your TV’s model number Start by finding your TV’s specific model number. It’s usually on a sticker or label on the back of your set, which can often be tricky to read — especially on a wall-mounted TV. Take a flashlight with you and jot down what you see on the sticker. Better yet, turn on your phone camera (with flash) to reach behind the TV and snap a picture of the sticker so you’ll have the information forever. Also: I changed 10 settings on my Fire TV to instantly improve the performanceYou should also be able to find the model number in the TV’s settings menu under the “About” or “Support” section. 2. Locate the firmware update Go online and visit the manufacturer’s official website to look for the “Support” or “Downloads” section. Use the search function on the website and enter your TV’s model number. This should bring up a list of available downloads for your specific model. Look for the latest firmware update file. Also: How we test TVs at ZDNET in 2025Be sure to pay close attention to the region and version information for the firmware update. Downloading and installing the wrong firmware can cause serious problems with your TV, potentially “bricking” it, which is the worst thing that can happen to any smart device because it renders it unusable. More