Will this be possible? Any expander type boxes available?

Simon.

OK Bingo thanks. I was thinking about it for my Mum's Avant but to be honest she wouldn't be fussed either way. I am not sure I fully understand why having an SD signal means it can't be converted to a digital HD one? I am sure I did see a tube tv set in a high street electrical shop that was receiving an HD signal.

Simon.

Think of it like taking a low quality image off the internet, and then blowing it up to fill the screen.

In a standard definition signal, there are generally around 500 'lines' of information (one line being a row of pixels across the screen). HD is made up from 720 or more lines of information across the screen. Extra lines can be added in, but the result isn't all that special without some very clever maths (the BeoSystem 3 does an admirable job of it, but it's still not quite 'HD').

The easiest way to explain it is that SD is a much smaller amount of information than HD, and a computer cannot add in extra information.

Thanks Alex, I see what you mean. Hope you are enjoying your BeoLab 4s by the way. I will probably buy these at some point. For the moment I have decided to buy a MAC instead of a new PC. It can run Vista and Office, so why not? Can't decide whether to get an all in one job though or the mini, perhaps with Apple TV too. B&O don't offer anything yet, so...

Simon.