TV

QLED versus OLED, and What is Microlithography?

LG B8 65" OLED - OLED65B8PUA

Episode 1603

Tom from Harrisburg, PA

Tom purchased a new OLED TV and it brought him to do research into the average diameter of an atomic nucleus and cutting circuit lines. Tom wants to know how production facilities are able to cut circuit lines so small and address the wiring grid within so that they don't overlap one another. Leo tells Tom that the process is called Microlithography, which he explains is similar to the idea of silk screening: Painters paint on a screen of silk and then apply ink to it, and the ink goes through the part of the silk that isn't painted. It's a fascinating process.

Why can't I get sound out of my TV?

LG 50UH5500

Episode 1538

Al from Roseburg, OR

Al has an old receiver and he wants to connect his TV to it. He bought one, but he's not getting sound from the TV. If he connects it to the Blu-ray player, though, it works just fine. Leo says that he'll need to go into the LG menu setup and disable the onboard speakers in favor of external speaker output. Another possibility is the DAC may not understand the TV signal because it's encoded, while the BluRay Player is using unencoded PCM audio. Al should figure out what audio the Blu-Ray is sending out and see if he can duplicate that setting on the DAC.

How can I fix the subtle pattern I'm seeing on white backgrounds on my TV?

Vizio TV

Episode 1328

Lori from Napa Valley, CA

Lori has a budget Vizio TV and she sees a subtle diagonal pattern when there's a bright background. It's distracting. Scott says to go into the menu and look under 16:9 to see if overscanning is enabled. Overscanning can cause scaling and artifacting, too. Scott doesn't see any way to turn that off, so she may want to contact Vizio about it.

Is it important to have a new TV professionally calibrated?

Disney WOW Disc

Episode 1328

Michael from Encinitas, CA

Michael is looking at a Vizio M-Series TV, but doesn't know if it's the 2016 model. Scott says it is. Is calibration important? It can be. The more you spend on a TV, the more important calibration is, and the less of a financial hit it is. For the Vizio M series, which is under $2,000, Scott says it's not worth spending another $300 to $500 for a professional calibration. Michael can get 80% of the way there himself by buying a $30 disc from Amazon. The one Scott recommends is the Disney World of Wonder disc.

Why is the audio cutting out on only some AT&T Uverse channels?

Episode 1235

Brent from Eastvale, CA

Brent has AT&T Uverse with the HD package, and on live programming such as football games and TV shows, the sound will cut out from time to time. He doesn't have the same issue watching movie channels, however. He has a Denon surround system that's only a couple years old. Scott thinks if it's only happening on certain channels, it would lead him to believe this is an issue on AT&T's end and not his. Scott suggests calling AT&T to report this to them.