Comment 15 for bug 486838

If the valid channels for each device are disjoint sets, then this coincides with my proposed solution.

Re "grandma" using several devices. Imagine she buys two set-top-boxes (STB), it is perfectly fine that each STB has its own configuration (and even its own remote). So the grandma approach would suggest that you keep each device separated. Of course, desktop programmes can improve this redundant setup. But it is not clear to me yet how to handle it cleanly.

I agree that the dual DVB-T setup calls for shared channels (and EPG). On the other hand, dual DVB-{S,C} or mixed DVB-* setups may call for different approaches. I suggest you open a blueprint for this, as it seems to me a relevant design matter, not yet fully addressed.

Finally (and this is off-topic, maybe a suggestion for another blueprint), channel reordering dialog is not-convenient when you have hundreds of channels available (as it is for DVB-T in Italy). Imagine reordering channels 103, 109, 145 to channels 1,2,3. You have to drag-n-drop for minutes before you get to the final result. Maybe the possibility to directly input the channel number would help. Also note that many countries (e.g. Italy, UK) support LCN (Logical Channel Numbering), where the broadcasting companies tell you which channel you should assign. (For example, MythTV supports LCN, and it is quite handy, even if channel conflicts are very poorly handled).