Set-top boxes are installed by plugging them into the back of the television and connecting them to the aerial lead.
If you need a new aerial as well as a set-top box, you may wish to have them professionally installed. Installation costs vary depending on the size of the house and the location of the aerial.
Your local retailers will be able to provide you with more advice about your options.
Detailed advice about how to set up Freeview devices is available on their website.
In most cases, you can set up digital TV yourself. All most people need is a set-top box, which can be installed by plugging it into the back of the television and connecting it to the aerial lead.
Pay-TV providers such as SKY or IGLOO will install the equipment you need to watch digital TV in return for a monthly fee.
To make sure you’re getting the right digital TV service, why not ask friends and family for recommendations or talk to your local retailer.
Remember, any new product can be used as a target for scams. Be cautious of door-to-door salespeople offering digital products and anything that sounds too good to be true.