As for the box, I’m not sure what I have. According to “My Swisscom” it is Swisscom Box 1, but that may just be a number and not the type. Sorry.
In the meantime, I had a long conversation with an expert from Swisscom who took a close look at my problem. He could see that for me the “system” (whatever that is) was deleting individual episodes on its own. The error or bug or whatever occurs sporadically it seems.
We reset the box and the router because you have to do that before the next level of experts takes action. They’ll mirror the contents of my memory and then see if they can figure out why the “system” (sounds a bit like Terminator) simply deletes individual episodes. After an initial overview, I’m still missing episodes from two series from two different channels. I don’t know which system the “system” uses to delete me. 😉
But the positive thing is that the hotline takes care of my problem.