[Stooky Bill]

There are no spare muxes currently to. Test them on.

But taking two SD feeds off each mux at a time and alternating does make sense.

South (SD currently on tp 48. Oxford on 48 bit being replaced) 2 on 48 being removed
East Midlands, East (SD currently on tp46 - Cambrudgebon 45 nit being replaced) 2 on 46 1 on 45 removed
West Midlands, Yorks & Lincs (SD also on tp46(
West, South West, Channel Islands, London (West CI and London currently on 45 to be removed. SW us on 48
North East & Cumbria, North West, Yorkshire (All these currently on tp47)
South East (currently on tp47.

Question now is at what point do Scotland Wales and NI get SD closures. The SD for them are on 47 46 and 48 respectively.

Kind of, each transponder will close, convert to DVB-S2, and reopen with a new set of HD services. It's not a case of just closing 2 SD services at a time - a whole transponder will go. So when 48 gets converted BBC1 NI SD will go too. 

But as I said earlier, there's a difference between a service being on the satellite and it being on the EPGs. They might be there before anyone can see them and vice versa

As for the order of regions, I suspect they are spread across the transponders to provide some diversity in case one fails - for example they don't want all the Welsh services on the same transponder, or East and West Mids for example

---

That order is logical so far as transponder use is concerned. Two at a time per mux

But the choice of TP seems illogical. They tested using a Sky TP, rather than one from Freesat, so that doesn't really add up.

Freesat doesn't have transponders, the BBC services are on the BBCs transponders.... except the two that currently aren't