Digital TV although not entirely a broadband issue do have links in couple of areas.

Digital TV is going to take over from analogue TV that is currently is use. By 2010 all UK televisions will have to be digital as the analogue service is going to be turned off so digital TV is going to be the only way to go.
The switch and change is not going to be everyone at the same time but by regions and areas at a time.

Digital TV provides better pictures and better sound but the reason that the chance is taking place is because digital TV signals can be compressed so more information can be transferred down the same line that can be via analogue signals.

With broadband TV now starting to slowly increase in popularity now means that digital TV can be sent through users broadband connections to watch either on a computer or a television. Sky By Broadband is an example now where Sky Digital users can watch certain Sky channels via their broadband connection on their computer.

A number of broadband providers also offer broadband, telephone and digital TV all together. So if you are looking at receiving digital TV then it is worth looking at if you can change suppliers as when you take out deals for multiple services such as digital TV and broadband providers can offer reduced rates with the more bundled services that you take up with them.

Sky digital uses satellite to deliver the digital TV and uses a minidish and digibox to receive and read it.

If however you want to combine digital TV with either broadband and/or telephone then see what NTL & Telewest have to offer. These are cable companies that can offer you broadband, digital TV and telephone via a cable.

Other suggested pages of reading are Broadband Television & IPTV.