Several different types
1. single analogue channel (BBC1 to Channel 5) - record on DVD or hard drive drive watch another channel on the TV tuner just like the old videos. can usually record from HDD to DVD later if required.
2. twin analogue - watch one channel and use live pause playback (hdd), record another channel with DVD
3. single freeview (digital channels)- as 1 above but can only watch analogue channels on tv without another freeview box
4. twin freeview tuner HDD and DVD (tese are hard to find and expensive) - as 2 but with all the freeview channels
Ask this before click here