Can you: watch a previously recorded programm while recording another with the 860?

Can you watch digital TV while recording a different channel.

It may be me but I seem to difficulty with both these.

This appears to be the only function of the 860 that has worked for me!

I have been able to watch a previously recorded program whilst recording another

With the 860 only having one inbuilt tuner you obviously won't be able to watch one broadcast while recording another, but you should be able to record and watch a recording at the same time

Are you getting an error on screen when trying this?

You can watch a recorded program while recording another. What happens when you try?

You have one digital tuner. So if it's being used to record one channel, you cann't watch another. You can watch terrestial channels through your TV's tuner. Or you can hook up an external Freeview box as an alternative input.