When you plug in your new HDTV, everything doesn't just magically become high-definition, there is a process.

Here’s what you need to watch HD:

HD source. You must be signed up to receive high definition service. This is done by contacting your cable or satellite company, they will provide you with a set-top (converter) box that is capable of sending you HD service.

Unless you have already contracted with them ahead of time for HD service, your current set-top-box may not be able to receive and send HD signals. Note: this will probably cost you extra $-cash-$.

Another alternative is for you have your HDTV's HD tuner connected to an over-the-air antenna.  This antenna will let you receive FREE HD programming from many TV networks. The trick is that you have to be close to a station and have your antenna pointed towards the HD signal in most cases.

I do not pay or subscribe through my satellite company, I receive HD programming by using an over-the-air antenna, which is located in my attic.  This antenna lets me receive several channels FREE, especially sporting events from the major TV networks, such as ABC, CBS, Fox, NBC and WGN.

HD connections. Your set-top-box and your TV must have component-video or High Definition Multimedia Interface (HDMI) connections and you need to have the right cables to connect you HD source and your HD TV together.

HD channels. HD channels use a different numbering system on your TV and remote control. You will need to tune or switch from standard definition TV to HD TV in order to start viewing high definition channels.

I have a Samsung 50 inch television and I have to press a button on my remote to switch form the standard definition channels to HD channels, it's that simple.

Also, the numbering format for HD is different. For example, some customers might get to NBC by pressing 5.1, while others get there by pressing 5-1, it may vary depending on your HD TV.