Today's thin, digital, wide-screen high-definition TV (HDTV). Most flat panel TVs are self-contained with a tuner and speakers that can receive over-the-air broadcasts. A few models are only ...

In the past, high-definition analog TV systems were developed; however, their usage was miniscule compared to the standard-definition (SD) analog NTSC, PAL and SECAM TV formats (see HD analog ...

Appropriating an abbreviation from high-definition TV, HD Radio offers better sound quality than AM and FM radio bands. It also allows stations to add more programming via several additional ...

As prices began to fall, you laid your plans. And then at the perfect moment, you pounced! A 4K ultra-high definition (UHD) TV, with a screen the size of a dining table, a two-page list of features, ...

Sony's display has four times as many horizontal pixels as a 4K television and eight times that of a regular 1080p high definition TV, meaning it can show images in far more detail than normal.

The 4K experience offers improved clarity and detail over YouTube TV's regular high definition streaming quality. That said, 4K streaming is only available for select programs and events.