I'm not convinced the problem has been solved.
forced an update Sunday evening and checked Monday that all my series links were showing in planned recordings, which they were.
HOWEVER, a single one-off recording I set recorded fine last night, yet two of my series link shows, one Monday night and the other tonight didn't record as 'there was no video signal'.
Was showing as recording whilst show was on, yet when I checked (after show ended) the folder had dropped down from top of recordings list (as it was being recorded) down the list (i.e. to last Tuesdays recording).
The active tuner is still on that channel and showing live TV fine.
Just rebooted to see if it makes any difference.
Effectively, whilst my series links are showing to be in place correctly, none have successfully recorded as yet
I'm off on hols next week .... looks like I'm going to have to set my shows manually as one off recordings to ensure they are recorded correctly ... unable to trust series links yet.