Okay will do, thanks again. A bit of a medical hiccup today, I'll try to do all that this week some time.
I can't understand why it's needed though, as the first time I set it all up with the first pc-based box the auto scan worked fine and did so right up until the box failed. Then just over a week later when this pi box was setup the frequencies had all changed coincidentally in that week? Seems unlikely.
No - but in this situation it's likely that your PC box would have been updated automatically with the new frequencies when the stations moved - that's part of the DVB spec that TV Headend follows. In other words, the frequencies from the set-up wizard were correct when you set-up TV Headend, the updated frequencies were sent in an updated network information table (I think it's NIT that does this) over-the-air that is part of the DVB spec. TV Headend saw the updated table, automatically added the new muxes and then scanned them, providing continuity of service. (DVB has this as part of its spec so you don't need to re-tune your TV if there are transmission / frequency changes)
When your box failed it was likely using the new frequencies - you just won't have been aware it had effectively re-tuned in the background to cope with the changeover - and just assumed it was using the frequencies originally added at set-up.
However at the moment the frequency database that TV Headend uses is out of date - so when you start a clean install now it doesn't know about the new frequencies in use in your area, it uses the old ones (as your original install did) but now it can't tune to any services, so can't do what your old install did (as it can't receive a NIT from any service).
As explained - add the muxes manually. You may only need to add one and network discovery will automatically add the rest.
We're not doing this to waste your time - we're trying to help.
I've been using TV Headend in the UK, Germany, Sweden, France, Finland, Estonia, Denmark and the Netherlands etc. for a long time - I've always ended up starting with manual muxes and local transmitter frequencies as it's just the way that is guaranteed to work (assuming you've got a set-up with the right drivers and an aerial/antenna feed with a signal on it...). I set up new installs all the time. I never use the wizard for tuning - I always start from scratch so I know what I'm doing. It also makes troubleshooting a lot easier as you've given things sensible names.
