HDTVs, projectors, and surround sound systems.
Bernie wants to know if HDMI is the same as optical for audio quality. Leo says that both connections are digital, so it's the same quality. Optical will give him Atmos and other multi channel stereo options as well.
Eileen bought a Bose sound system, which is connected to an optical splitter, so they can use her headphones too. But now the headphones won't work after a power surge. Leo says it's possible that the power surge fried the optical splitter. She should check if the headphones work with her TV (she may need to change her audio settings in the TV). It may also be possible that the settings changed in her TV, so she should look in there and see what it's offering. She may need to reset it to PCM unencoded audio or something similar. She should just try different settings.
Black Friday Deals are looking very good this year:
Clarence needs to get a new 55" TV. What does Leo know about HiSense? Leo says that HiSense is a budget TV manufacturer from China, but the TVs are really well made. They're the next Samsung. Vizio is another really good TV. In fact, it's the best 2nd tier TV for the money.
Theresa's 7 year old LCD TV has gone black, and if she looks up close, she can still see an image. Can she fix it? Scott says that the backlit LED panel has gone out and it's really not worth fixing. For less money, she can just buy a better 4K TV. If she's on a budget, TCL and Vizio are the best options.
Scott got an email from a listener who wanted to stream using an old analog receiver and speakers, and Synology NAS. Scott says that the listener discovered that using the Chromecast audio (which has an analog/digital output) was the ideal solution. It works great with a powered speaker or a pair of speakers which are powered by the AV receiver. You have to set it on AUX, but if all you have is analog, this is a great workaround.
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.
What is the difference between OLED and QLED? Scott says that OLED is Organic Light Emitting Diodes, and is based on organic chemistry, or carbon. That's how it makes light. QLED, on the other hand, stands for Quantum Dot Light Emitting Diode, and it's just a higher end LCD TV. The light source behind the panel is using quantum dots, including LEDs to illuminate the image. They are completely different technologies. But the "QLED" term confuses people, and they may think they're getting a special OLED screen, but they aren't.