Jon L. JacobiFreelance contributor, TechHive

Jon is a Juilliard-trained musician, former x86/6800 programmer, and long-time (late 70s) computer enthusiast living in the San Francisco bay area. jjacobi@pcworld.com

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How to get rid of hum and eliminate other noises from your audio and video systems

Don't let buzz, hum, or hiss ruin your AV experience. We'll show you how to solve common electrical faults and ditch the noise.

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TCL P-series Roku smart TV review: Dolby Vision hits the mainstream

Support for Dolby Vision elevates the TCP 55P607's image chops.

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PowerDVD 17 Ultra review: The best way to play Ultra HD Blu-ray movies on your home theater PC

If you have the proper hardware, PowerDVD 17 Ultra will play Ultra Blu-ray movie discs from your PC. Support for Oculus Rift and HTC VR headsets has also been added.

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How to calibrate your TV to get the best picture possible

A few simple adjustments can help your TV produce a more accurate picture. We'll show you how.

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Oppo UDP-203 4K UHD Blu-ray player review: A class act with awesome audio capabilities

Quick disc loading, support for both HDR-10 and Dolby Vision, and tons of audio features push this Blu-ray player to the front of the pack.

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Samsung Q9F series QLED smart TV review: Samsung's best 4K UHD TV yet

Quantum dots and improved backlighting make for outstanding 2160p HDR. It takes LED-backlit LCD to another level.

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How to connect your PC or laptop to any TV

Given a relatively recent PC or laptop, you can connect it to just about any TV with an input.

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Sony shows off its new OLED and LCD TVs, video projector, and Bluetooth speakers

Our first look at the products Sony announced at CES reveals additional details and impresses us anew.

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Back up all your data—and we mean all of it—to your NAS box without installing any software

NAS boxes can use old-school protocols and their own apps to back up your PCs from far and near, as well as sync with cloud services to keep your mobile data safe.

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LeEco Super4 X65 TV review:A good picture and great features at a nice price

This large-screen 4K UHD smart TV has a super-responsive interface, and the picture is surprisingly rich given the absence of quantum dots.

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QNAP TS-251A NAS review: More media features than you can shake a stick at

QNAP's TS-251A NAS has the ability to output video directly to an external 1080 display and is a great media streamer. The advertised on-the-fly 4K transcoding, on the other hand, proved to be weak.

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WD My Cloud EX2 Ultra review: Excellent features and performance at a very nice price

For a NAS box with a boatload of software features and top-notch performance, the WD My Cloud EX2 Ultra is amazingly affordable.

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Netgear ReadyNAS 212 review: Super fast, but best for business

With a boatload of pro features and excellent performance, this is a box better suited for the small office than the home, but it streams as smoothly as any of its rivals.

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TerraMaster F2-220 NAS review: Major-league hardware and rapidly improving software

TerraMaster's FS-220 is relatively new to the NAS category, but it's a great performer with a promising interface.

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Zyxel NAS520 review: New-school hardware, old-school software (in a good way)

Zyxel's NAS520 is an affordable NAS box with good streaming and backup features, but it's a bit less refined than mainstream users would want.