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Got a tech question for Sound & Vision? Email us at AskSandV@gmail.com

Q I have plans to buy a new LG 65EF9500 OLED TV. Here’s my question: How long a break-in period would you recommend before having it professionally calibrated? I used my current Panasonic plasma for about 100 hours before having it calibrated.  Also, can any ISF-certified technician handle an OLED TV, or does it require special training? —John Violette

A It’s recommended that you treat an OLED TV the same as you would a plasma for the first 100 hours of use, being careful not to leave fixed images like electronic program guides or paused video game frames onscreen for an extended amount of time. This will be especially important when viewing high dynamic range (HDR) content with the 65EF9500. LG even warns about the potential for burn-in in the EF9500’s manual and recommends steps you can take to prevent it, though any image retention you experience in most situations should only be temporary.

With the warm spring beckoning us Northerners to the outdoors, thoughts of week-long beach vacations or camping trips bring on a serious dilemma: How in the world are we going to watch movies? OK, maybe, maybe not. But if you happen to be a millennial or a teenager with a smartphone, you know that its screen handily doubles these days for your old pappy’s big-screen TV. Except, it’s really not so big, is it? You can crowd in only so close when you’re trying to share your latest photos or a download of American Horror Story with a group of friends.

Netflix is planning to unveil a new feature by the end of the year that will allow subscribers to download and view video content offline, according to a report in LightReading. Netflix isn’t talking, however.

Last September, Bowers & Wilkins officially introduced the bulk of its new 800 Series Diamond speaker line, but held back the crown jewel flagship model. Now, in the summer of B&W's 50th anniversary year, and with the backdrop of its recent acquisition by a well-funded Silicon Valley start-up, the company has introduced the 800 D3 tower, the total embodiment of three-and-a-half years of intense R&D leading to what is said to be it's most advanced and best speaker ever.