Why all the buzz about HDTV? Because it frees the average TV viewer from mediocre television viewing experiences. Composite viewing draws from lower resolution video sources. HDTV interlaced sources can reveal optimum picture quality with Svideo cables as hardware. Luminance (brightness) and chrominance (color) information is combines in this transmission medium.

The signal for audio will have its own device as the cables can’t carry the audio and video together. The four pronged HDTV cable assault on the set top box or downrezzing source to video means never having to say you’re copying that signal again. Coaxial cables will generate from the signal source at antenna or cable source. Many surround sound systems for audio will require digital signal transmission means.

Digital audio signal data can be conveyed via digital coaxial means or optical fiber cables. Analog cables look very much the same, so consumers should know the difference. Analog cables are also called RCA cables. But fiber optic cables have more resolute immunity to electromagnetic interference. This should be of note for home theater owners with a lot of signal noise and metallic components evident in the home viewing space.

Firewire and serial port connectors are also present in multimedia or computer driven video connections. The limitations of these wirings explain the classically low definition of computer video quality up to the present day. Yet LCD and HD signal and video is currently piped into SVGA monitors regularly via the Internet. It just doesn’t always display as HDTV if the monitor is not capable of aping the scale of picture with existing hardware.

HDTV is now in programmed broadcast channel entertainment from all the major networks. In fact, in some areas the government has issued coupons for digital-to-analog converter boxes because existing signal in some areas is now purely digital from cable providers. So, the traditional TV antenna is not dead, simply ailing in place. But some areas geographically still simply don’t have variance and distribution of HDTV signal for consumers.

Many signal error messages and difficulty operating these dinosaur TV units make the jump to digital cable TV a snap. Verifying availability of local HDTV signal for programming is up to the customer. It stands to reason that checking for HDTV signal and costs before pricing HDTV ready televisions is a good plan. But since any HDTV signal may be rendered by an analog TV (albeit with technological limitations) the forward motion of HDTV saturation is progressed even further.

The presence of TV tuners inside new model TVs shows that even though HDTV signal receipt is a must for all televisions, not every TV can procure HDTV signal where it is not broadcast. Furthermore, the new TV may be HDTV capable from signals point of view, yet the technology inside the television would still render any HDTV signal according to the technical specifications of that TV. The TV tuner makes all the difference.

HDTV signal availability will also depend on topographical placement of the tuner or antenna and the ability of home consumers to install viable antennas for optimum signal capture. When moving or looking at new  residential or business property, verify that local HDTV signal is in good working order using the address online. If finite signal resources do not provide the HDTV you need, look elsewhere unless you believe your tuner and converter can render the HDTV picture and experience acceptably.