What is the Difference Between DTV and HDTV?


What is the Difference Between DTV and HDTV

This question gets asked in Google Searches hundreds of times per day, yet no two answers describes the answer exactly the same way. My aim here is to give a simple, concise answer without going into too much technical detail about Digital Television and picture definition. There are other websites which give excellent details on this, but for simplicity and brevity, here is the answer to the question:

DTV stands for Digital Television

HDTV stands for High Definition Television.

If you have High Definition Television, you have DTV, but if you have DTV, you don’t necessarily have High Definition Television (HDTV). HDTV simply refers to a higher form of resolution or definition than Digital Television (DTV).You cannot have HDTV without DTV, but you can have DTV, and not have HDTV, depending on your television and broadcast signal. DTV simply refers to a broadcast signal which is transmitted digitally, as opposed to analog.

With the emergence of new Digital Broadcasting via Satellite and Cable, TV companies began producing Digital Televisions which take advantage of the superior clarity and picture definition of the digital signal. HDTV takes it a step further. In order to get HDTV, you will need a television capable of displaying in high definition resolution. If you’ve seen a comparison side-by-side, there is a world of difference in the quality of an HDTV picture and a regular, DTV, non HD resolution picture.

February 17, 2009 will mark the end of analog television. You will no longer have to worry about buying a digital television or whether or not you have DTV. If you still have an analogy television, it will work but through a converter box. If you just bought a brand new 1080P LCD TV, so much the better!

Motorola Dual Tuner DVR

What is a Digital TV Tuner DVR Cable Box?

Congratulations. You just bought a brand-spanking new wide-screen, high-def 1080p LCD television. Now, how do you get the most of your High Definition, Digital Television experience? Much of the way you use a digital TV has to do with the service provider you choose. Whether you go with a Dish or Cable, literally all digital televisions can give you Digital Video Recording (DVR), interactive programming, advanced menu systems, and high definition channel tuning through the Set Top Box. Though virtually all digital televisions have their own high definition, built-in tuners these days, an HD, set-top box is a more powerful way to tap into your TV’s features and performance, such as Digital Video Recording (DVR). Cable Companies such as Comcast, have an additional feature called, Video On-Demand which allows you to choose from hundreds of programs or movies and watch them when you want to watch them. You will need a set-top box to do this.

The DCT6412 is a Dual-Tuner DVR High Definition Set-top box by Motorola.

I am currently renting a DCT3412 through my Cable Provider, Comcast. The DCT6412 is similar, but with a few more features, bells and whistles, which make it a better choice for coverage in this review. If you own a High-Definition television set, it makes sense to pay a little bit more on your monthly bill for a DVR (Digital Video Recorder), so you can record, pause, rewind and replay live television, as well as watch it in High Definition clarity. Comcast and most other Cable companies will not charge you extra to rent the brand and model you want, so it helps to know ahead of time which cable box you want and simply ask for it. If it’s available they will exchange it for you at no extra charge. (Especially if you threaten to try DirectTV.) The DCT6412 was not available at the time my cable was installed in my current home. In the past, whenever I have wanted new equipment with Comcast, all I had to do was ask, so I assume I could upgrade for no extra charge. In a nutshell, here is what the DCT6412 Dual-Tuner DVR High Definition Cable Box has to offer: Video On-Demand, Digital Music (Dolby Surround Sound), interactive programming, Dual Tuner Digital Recording and of course, High Definition tuning and display.

Setup of the DCT6412 DVR Cable Box

In order to take full advantage of the features and get the most of the picture and sound quality of the DCT6412 Dual Tuner DVR Cable Box along with your home theatre sound system, you will need either a set of component video cables or HDMI cable, and a digital audio cable. Setup is pretty straight forward. There is only one Coax Input on the back of the DCT6412 Dual Tuner Set Top Box. That is where you will connect the cable coming from your house. Next, you will need to hook the necessary video and audio cables from your DCT6412 Set Top Box to your television and/or stereo system. The HDMI or Component Cables (either of these are sufficient for High Definition Display), plug into the respective video out connectors on the back of the cable box, than to the HDMI or Component in of your television. The HDMI is the preferred cable merely for the fact it is smaller, less bulky and has only one connection.  For audio, the Set Top box includes a couple of RCA jacks. Plug the two RCA Audio connectors to the back of your box, then to the audio input jacks of your television. You are now ready to watch and listen to your television without the use of your stereo or home theatre system. If you are going to be using your television as part of a home theatre system, you may still want to have your set top box audio connected directly to the television so you can simply watch the TV without always having to turn on the surround sound. The DCT6412 Cable Box has Optical Audio outputs. Plug your Optical Cable into this and then into one of the inputs of your Surround Sound Receiver. This will allow you to listen to movies or music which are programmed and transmitted in Dolby 5.1 Surround Sound. One other convenient feature is that the front of the unit has a set of video/audio RCA inputs. These can be used for displaying output from an external device such as a camcorder. That is pretty much it for the basic setup of your DCT6412 Cable Box. There are a number of other interesting connections on the unit, but any explanation of what they are for and how they are used is inexplicably absent from any of Motorola’s manuals or documentation. For instance, there are two USB connections; one in front and one in back. There is one firewire connector and one 10/100 Ethernet jack. Also, there is a smart-card slot, which is used by your cable provider for programming your service. I have done some research online and will report on what these mysterious, unknown, undocumented features can and cannot be used for in an upcoming article. Meanwhile, let’s discuss how it all works:

Basic Operation of the DCT6412

Using the DCT6412 Dual-Tuner DVR High Definition Cable Box is pretty simple; though it is unlikely you will tap its full potential in your first week of use, if ever.
The DCT6412 Remote can be programmed to control your Television, DVD or VCR player and your Audio System. Instructions are included for how to do this. I’ve found that the number or channel buttons on the remote are a little bit small and awkard to control; otherwise the remote is adequate and easy enough to learn and use. Press the TV button on the remote, then press the cable button to power on the cable box and change channels on your box. When your Cable box is plugged in for the first time, it will take several minutes for it to find and program all of the station information. Once this is completed, you can view detailed information on any program you are watching by pressing the ‘info’ button. You can use the channel up-down button to change programs, or you can press the ‘okay’ button in the center of the four arrows which are located in the middle of the remote. Pressing the ‘okay’ button makes it possible to browse and scroll through 3 or more channels at a time. When you find the program you want, simply select ‘okay’ once again. You can actually scroll ahead several days in advance to view the programming of any channel you are browsing. If you want a full-screen view of television programming, press the ‘guide’ button. You can press the ‘menu’ button to do a search for your favorite program by category or title. There are also a number of other features that can be setup through the ‘menu’ function: Basic Setup, On-Demand, TV Listings, Search, Parental Control, DVR, Messages, Local Weather, Help, and Pay-Per-View.  Each of these menu settings are described in detail in the included DCT6412 user manual. The DCT6412 will support all of the common digital television resolutions; 480i, 480p, 1080i and 720p. There is also a stretch mode which automatically stretches a standard definition program picture to fill the screen of a wide format television.  The resolutions you choose depend on the capabilities of your television resolutions, so make sure you know what your TV supports. Note: The box gets very warm. The manual recommends placing it in a well ventilated area: Good advice.

DVR: Digital Video Recording on the DCT6412

The DCT6412 Dual-Tuner DVR High Definition Cable Box remote has controls much like a VCR or DVD Player: Rew, Fwd, Pause, Play, Stop and Record. Say, you are watching a live football game and want to review a play: Simply, press rewind. You can review the video while it is reverse just as if you were rewinding a tape. Press play, and you’re watching a piece of history in perfect visual clarity as if it were being played for the first time. Pressing the REW or FWD button a 2nd, 3rd 4th or 5th time will successively increase the speed.  Press pause at any time and you will have a perfect still, snapshot picture of the action on your screen. Pressing the LIVE TV button returns you to the live action of the program you are watching. The DCT6412 Dual-Tuner DVR High Definition Set-top box is equipped with a 120GB Hard Drive for storing and saving recorded programs and shows. The advantage of a Dual Tuner is that you can record two programs at the same time as well as watch a program other than the one you are recording. Recordings can be scheduled days in advance. In the DVR On-Screen menu, there are some useful recording options: For example, you can choose to record a program series. This is useful if you want to record your favorite weekly or daily television show.  Just select the show you want to record and choose series. Your DCT6412 set top box will automatically record the show every time it is being broadcast. You can manage and delete your recordings through the DVR menu. High Definition recordings require far more disk space. You will only be able to store 15 hours of HD programming on your 120GB hard disk, as opposed to 90 hours of standard definition programming. This is a rough estimate, as it depends on the quality of the broadcasted transmission. Your DRV menu will display to you how much recording space is left.

Video-On-Demand on the DCT6412

One of the advantages of Cable as opposed to a dish system is Video-On-Demand. Video- On-Demand is basically a library of hundreds of programs, movies and shows that can be watched whenever you want to watch them, 24 hours a day, 7-days a week.
If you want to watch Video On-Demand, press the VOD button.  A menu appears with categories such as, Top Picks, Movies & Events, HD On-Demand, TV Entertainment, TV Series, Free Movies, Sports, etc. etc. Comcast advertises that there are thousands of On Demand choices. I have never counted them all, so I’ll take their word for it. The REW, FWD, PAUSE, STOP all work very much the same as the DVR menu. This is one weakness I’ve come to realize about the DCT6412: The interactive response time is very slow. For example, if you want to fast-forward to your favorite scene of a movie or football game, it is a difficult and very slow process getting there. One solution is to use the DVR to record the show first. Navigating a pre-recorded program is much easier and faster.

Bottom Line Impression of Motorola DCT6412 HDTV Dual Tuner DVR Cable Box

There are not a lot of choices to compare when it comes to these products, because what you get is greatly tied into the service of your television provider. The DCT6412 HD, Dual-Tuner Cable Box by Motorola gets the most of your television, and if you wish to experience Video-On-Demand, this is the best way to do it. Because it is part of the rental package through your Cable provider, this product represents an excellent value.

Ratings: Motorola DCT6412 Cable Box

  • Features: 88
  • Ease-of-Use: 88
  • Performance: 85
  • Cost: 95
  • Setup and Documentation: 92
  • Overall: 89


Analog To Digital TV Converter

Analog to Digital TV Converter
Zenith DDT900 Analog – Digital Converter

Analog to Digital TV Converter

Were you actually looking for a Digital to Analog TV Converter Box or a DTV box or Digital Converter Box? If you still have one or more analog televisions in your home and you wish to use them after February 17th, 2009, you will need to buy a Digital to Analog Television Converter Box. Some tend to reverse the terminology by calling these Analog to Digital Converters rather than the other way around, or you may refer to them simply as a DTV Box, or digital converter box.  Whichever way you name them, their purpose is to allow you to continue watching the new digital television transmissions on your old analog television. So, analog to digital, digital to analog … how much do these babies cost, and which DTV Box or digital converter box should I buy?

DTV.GOV has useful information and links to coupons for how to acquire these DTV boxes. Typically, they cost around $50.00 – $60.00. The good news is that every U.S household can receive two $40.00 coupons from the U.S government at the website below: DTV.GOV
Analog to Digital Website So, basically, you can expect to pay no more than $10.00 or $20.00 for each television, as long as you use them to purchase one of the listed models on their site. You can also call them at: 1-888-DTV-2009. The other way is to request one from your Cable or Satellite TV provider.

There are other, more expensive DTV Boxes with a better television menu system and other advanced features. However, after doing a little research, I’ve discovered that there are really no substantial benefits or reasons to pay more than $50.00 for a box which will be used on an older, analog television. One of the more popular ones seems to be the Zenith DTT900. It is actually a nice looking box and quite a bit better looking than the old analog one given to me by my cable provider, Comcast.

Analog televisions normally use a 4:3 viewing ratio. The DTT900 will support a wide screen views if you do happen to have a digital TV, but this box is mostly intended to make use of a 4×3 analogy TV. There are four viewing Formats that you can set:
Set By Program, Letterbox, Cropped and Squeeze.

The menu system seemed adequate and easy to use, though I would prefer larger buttons for the numbers on the remote, which is a little too small for my personal tastes. The DTT900 includes 2 RF-style F connectors. One for input and one for output. It also includes one set of standard RCA outputs.

DDT900 Remote
DDT900 Remote

Due to digital processing, there is a noticeable improvement in picture quality, even on an analog television. The important thing, however, is that the DTT900 provides an inexpensive way to continue using your favorite analog television, allowing you to wait for digital television prices to continue dropping through the floor. For the official FCC website regarding DTV Converters: DTV.GOV