Hi Barry,
We have been told series link options like new only will return, but when is anybody's guess.
The only way I have found to jump between 2 channels is to put them on record and then watch from where you left, no where near as easy as before, previously you could set the channels so you could switch between 6 different channels.
There is no way of retrieving recordings deleted in error. You have to be careful when deleting unwanted episodes in series links because when you delete something and it drops to the next episode the bin is highlighted not the next episode title, so easy to press OK thinking you are on the program to start, which surely would have been the sensible option.
Another thing they need to get rid of is the automatic start of the next episode, or at least give you the option to turn it off.