I manually added my mux’s and wondered if you have done it this way, do you need to retune in some way, or remove the mux and re-add it.
You say you manually added your mux’s but did you delete the old mux’s?
Or do you generally not need to do anything when they suggest you retune?
It depends on the nature of the change. The recent BBC 1 HD changes definitely required a retune of the relevant mux for recording to work. If the change is just minor additions of obscure new channels or changes of LCN then retuning is optional.