There was once a time when a knowledgeable enthusiast had the resources to build a television at home. That was in the days when the technology was much simpler than it is today. The introduction of color made it harder to build a television at home and the advent of digital broadcasts has made it just about impossible.
Digital television signals operate at very high data rates and demand specialist processing circuitry and ICs to even capture an incoming signal. Formatting the signal to be displayed on an LCD screen takes more complex hardware and software and there is no way to manufacture a home made LCD panel.
Sadly, for the home electronics enthusiast, constructing your own television is no longer possible without a ridiculous amount of test equipment and money. We have to leave television manufacturing to the large companies who have the development resources to produce a design that can be made in large numbers.
what is digital technology
Reliance Digital TV's motto is 'If you have a TV, make it BIG'.
Digital Televisions are very easy to use. Here is a link to a video explaining *how* Digital Television works: http://electronics.howstuffworks.com/dtv.htm Here is a link that describes how to make the transition from analog to digital tv http://www.ezdigitaltv.com/
make you happy
Older televisions can make the switch to digital programming with a digital converter. The converters are usually about $20-$60 and are available at most electronics stores.
For people with older, analog television sets, a digital TV tuner is a necessary accessory in order to receive modern TV signals. Two companies that manufacture digital TV tuners are Haupt and Leadtech.
The signal sent to the TV must be a digital signal as well.
The answer is YES....just do a web search of "portable battery operated digital televisions" and you'll find what you want.
none of my televisions are digital... yet.
Comcast will provide you with a digital tv box that allows your television to receive the digital signal and therefore you won't need the digital tv antenna.
Digital TV's are capable of and necessary for processing digital TV broadcasts.
All TVS that you can buy are ready for the digital signal. You do not have to buy an HD TV to get a digital signal.