I use a personal bouquet in which all my most watched channels are stored. I also use autotimer a lot.
When setting up a autotimer for a program and use restrict search to certain channels this works like a charm. But when I don't use channel but bouquet (when I want to record the program when it is available on any channel in my bouwuet) it doesn't give any results. I would suspect when restricting to a bouquet (and leave the channels part empty) it would search for the program in all channels available in the bouquet.
Now that I'm at it, it would also be nice if there would be an option to exclude some channels from the search (so I can search for a program for all channels in a bouquet, but also can exclude some channels if I'd want to).